| AAORRAC | Antiquus Arcanus Ordo Rosae Rubaea et Auraea Crucis | In Latin | → Religion, theology |
| AcA | Acta Astronomica | In Latin | → Serial publications, periodicals → Astronomy |
| AcAAS | Acta Aeronautica et Astronautica Sinica | In Latin | → Serial publications, periodicals → Spaceflight engineering, astronautics → Aeronautics, aircraft |
| AcAau | Acta Astronautica | In Latin | → Serial publications, periodicals → Spaceflight engineering, astronautics |
| AcAcu | Acta Acustica | In Latin | → Serial publications, periodicals → Acoustics |
| AcAer | Acta Aerodynamica Sinica | In Latin | → Serial publications, periodicals → Aerodynamics |
| AcAM | Acta Applicandae Mathematicae | In Latin | → Serial publications, periodicals → Mathematics |
| AcApS | Acta Astrophysica Sinica | In Latin | → Serial publications, periodicals → Astronomy → Physics |
| AcArm | Acta Armamentarii | In Latin | → Serial publications, periodicals |
| AcAS | Acta Astronomica Supplementa | In Latin | → Serial publications, periodicals → Astronomy |
| AcASn | Acta Astronomica Sinica | In Latin | → Serial publications, periodicals → Astronomy |
| AcAuS | Acta Automatica Sinica | In Latin | → Serial publications, periodicals |
| AcBAS | Acta Biochimica and Biophysica Academiae Scientarium Hungarica | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| AcBB | Biochimica et Biophysica Acta | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| AcBBH | Acta Biochimica et Biophysica Hungarica | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| AcBBS | Acta Biochimica et Biophysica Sinica | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| AcBio | Acta Biotheoretica | In Latin | → Serial publications, periodicals → Biological sciences |
| AcC | Acta Cosmologica | In Latin | → Serial publications, periodicals → Astronomy |
| AcCr | Acta Crystallographica | In Latin | → Serial publications, periodicals |
| AcCS | Acta Chemica Scandinavica | In Latin | → Serial publications, periodicals → Chemistry |
| AcElc | Acta Electrochimica | In Latin | → Serial publications, periodicals → Electrochemistry |
| AcEle | Acta Electronica | In Latin | → Serial publications, periodicals → Electronics |
| AcElS | Acta Electronica Sinica | In Latin | → Serial publications, periodicals → Electronics |
| AcFre | Acta Frequenza | In Latin | → Serial publications, periodicals |
| AcGeo | Geodinamica Acta | In Latin | → Serial publications, periodicals → Geophysics |
| AcGeP | Acta Geophysica Polonica | In Latin | → Serial publications, periodicals → Earth sciences |
| AcHA | Acta Historica Astronomiae | In Latin | → Serial publications, periodicals → Astronomy → History |
| AcHCh | Helvetica Chimica Acta | In Latin | → Serial publications, periodicals → Chemistry |
| AcHPh | Helvetica Physica Acta | In Latin | → Serial publications, periodicals → Physics |
| AcM&M | Acta Metallurgica et Materialia | In Latin | → Serial publications, periodicals → Chemical technology → Metallurgy |
| AcMa | Acta Mathematica | In Latin | → Serial publications, periodicals → Mathematics |
| AcMaH | Acta Mathematica Hungarica | In Latin | → Serial publications, periodicals → Mathematics |
| AcMat | Acta Materialia | In Latin | → Serial publications, periodicals → 620 |
| AcMCS | Acta Materiae Compositae Sinica | In Latin | → Serial publications, periodicals → Chemistry |
| AcMec | Acta Mechanica | In Latin | → Serial publications, periodicals → 531 |
| AcMeS | Acta Meteorologica Sinica | In Latin | → Serial publications, periodicals → Meteorology, climatology |
| AcMet | Acta Metallurgica | In Latin | → Serial publications, periodicals → Metallurgy |
| AcMPh | Acta Universitatis Caroliae Mathematica et Physica | In Latin | → Serial publications, periodicals → Mathematics → Physics |
| AcMSn | Acta Mechanica Sinica | In Latin | → Serial publications, periodicals → 531 |
| AcMSS | Acta Mechanica Solida Sinica | In Latin | → Serial publications, periodicals → 531 |
| AcNum | Acta Numerica | In Latin | → Serial publications, periodicals → Mathematics |
| AcO | Acta Oecologica | In Latin | → Serial publications, periodicals → Ecology |
| AcOC | Oceanologica Acta | In Latin | → Serial publications, periodicals → Marine research, oceanography |
| AcOdS | Acta Odontologica Scandinavica | In Latin | → Serial publications, periodicals → Surgery, orthopaedics, ophthalmology |
| AcOpS | Acta Optica Sinica | In Latin | → Serial publications, periodicals → Optics |
| AcOpt | Optica Acta | In Latin | → Serial publications, periodicals → Optics |
| AcOrS | Acta Orthopaedica Scandinavica | In Latin | → Serial publications, periodicals → Surgery, orthopaedics, ophthalmology |
| AcOSi | Acta Oceanica Sinica | In Latin | → Serial publications, periodicals → Marine research, oceanography |
| AcPhA | Acta Physica Austriaca | In Latin | → Serial publications, periodicals → Physics |
| AcPhC | Acta Physica et Chemica | In Latin | → Serial publications, periodicals → Physics → Chemistry |
| AcPhH | Acta Physica Hungarica | In Latin | → Serial publications, periodicals → Physics |
| AcPhS | Acta Physiologica Scandinavica | In Latin | → Serial publications, periodicals → Physiology |
| AcPhy | Acta Physica | In Latin | → Serial publications, periodicals → Physics |
| AcPP | Acta Physica Polonica | In Latin | → Serial publications, periodicals → Physics |
| AcPSl | Acta Physica Slovaca | In Latin | → Serial publications, periodicals → Physics |
| AcPSn | Acta Physica Sinica | In Latin | → Serial publications, periodicals → Physics |
| AcRhe | Rheologica Acta | In Latin | → Serial publications, periodicals |
| AcSpe | Spectrochimica Acta | In Latin | → Serial publications, periodicals → Chemistry |
| AcTC | Theoretica Chimica Acta | In Latin | → Serial publications, periodicals → Chemistry |
| AcTec | Acta Technica | In Latin | → Serial publications, periodicals → Applied sciences, technology |
| Acu | Acustica | In Latin | → Serial publications, periodicals → Acoustics |
| AD | Anno Domini | In Latin | |
| AdAs | Ad Astra | In Latin | → Serial publications, periodicals → Astronomy |
| ADN | Acidum deoxyribonucleinicum = ADN | Acide désoxyribonucléique | In French = DNA | Deoxyribonucleic acid | In English = TDN | Trenkenn dizoksiribonukleek | In Breton = DNK | Deoxyribonukleová kyselina | In Czech = DNA | Deoksiribonuklea acido | In Esperanto |
In Latin | → Genetics → Biochemistry, biophysics |
| AH | Anno Hegirae | In Latin | |
| Al | Aluminium = Al | Aluminium | In French = Al | Aluminium | In Afrikaans = Al | ألومنيوم | In Arabic = Al | Aluminiu | In Asturian = Al | Alüminium | In Azerbaijani = Al | অ্যালুমিনিয়াম | In Bengali = Al | Алюміній | In Belarusian = Al | Aluminijum | In Bosnian = Al | Aluminiom | In Breton = Al | Алуминий | In Bulgarian = Al | Alumini | In Catalan = Al | Алюмини | In Chuvash = Al | Hliník | In Czech = Al | Alluminiu | In Corsican = Al | Alwminiwm | In Welsh = Al | Aluminium | In Danish = Al | Aluminium | In German = Al | Alumiinium | In Estonian = Al | Αργίλιο | In Greek = Al | Aluminio | In Spanish = Al | Aluminio | In Esperanto = Al | Aluminio | In Basque = Al | آلومینیوم | In Persian = Al | Aluminium | In English = Al | Alumini | In Friulian = Al | Alúmanam | In Irish = Al | Ollymin | In Manx = Al | Almain | In Scottish Gaelic = Al | Aluminio | In Galician = Al | 알루미늄 | In Korean = Al | Ալյումին | In Armenian = Al | एलुमिनियम | In Armenian = Al | Aluminij | In Croatian = Al | Aluminio | In Ido = Al | Aluminium | In Indonesian = Al | Ál | In Icelandic = Al | Alluminio | In Italian = Al | אלומיניום | In Hebrew = Al | Alumunium | JV = Al | Aluminiu | In Kapampangan = Al | Alumini | In Swahili = Al | Aliminyòm | In Haitian Creole = Al | Bafûn | In Kurdish = Al | Alumīnijs | In Latvian = Al | Aluminium | In Letzeburgesh = Al | Aliuminis | In Lithuanian = Al | jinmrmalume | In Lojban = Al | Alumínium | In Hungarian = Al | Алуминиум | In Macedonian = Al | അലൂമിനിയം | In Malayalam = Al | ऍल्युमिनियम | In Marathi = Al | Aluminium | In Malay = Al | Хөнгөн цагаан | In Mongolian = Al | Aluminium | In Dutch = Al | アルミニウム | In Japanese = Al | Aluminium | In Norwegian = Al | Aluminium | In Nynorsk = Al | Aluminie | NOV = Al | Alumini | In Occitan = Al | Alyuminiy | In Uzbek = Al | Aluminium | In Low German = Al | Glin | In Polish = Al | Alumínio | In Portuguese = Al | Allu | In Kölsch = Al | Aluminiu | In Romanian = Al | Ch'aqu q'illay | In Quechua = Al | Алюминий | In Russian = Al | Alluminiu | In Sicilian = Al | Hliník | In Slovak = Al | Aluminij | In Slovenian = Al | Алуминијум | In Serbian = Al | Aluminijum | In Serbo-Croatian = Al | Alumiini | In Finnish = Al | Aluminium | In Swedish = Al | அலுமினியம் | In Tamil = Al | అల్యూమినియం | In Telugu = Al | อะลูมิเนียม | In Thai = Al | Nhôm | In Vietnamese = Al | Алюминий | In Tajik = Al | Alüminyum | In Turkish = Al | Алюміній | In Ukrainian = Al | Aluminiọmu | In Yoruba = Al | 铝 | In Chinese |
In Latin | → Chemistry |
| AM | Ante meridiem | In Latin | → 006 |
| AMORC | Antiquus Mysticusque Ordo Rosae Crucis | In Latin | → Philosophy, psychology → Religion, theology |
| AnGeo | Annales Geophysicae | In Latin | → Serial publications, periodicals → Geophysics |
| AnTec | Annales Tectonicae | In Latin | → Serial publications, periodicals → Seismology, earthquakes → 55124 |
| AO | Acta Orientalia | In Latin | → Serial publications, periodicals → Language, linguistics, literature → Geography, biography, history |
| AO | Aula Orientalis | In Latin | → Language, linguistics, literature → Geography, biography, history |
| APASH | Acta Physica Academiae Scientiarum Hungaricae | In Latin | → Serial publications, periodicals → Physics |
| ApNr | Astrophysica Norvegica | In Latin | → Serial publications, periodicals → Astronomy |
| ARN | Acidum ribonucleinicum = RNA | Ribonucleic acid | In English = ARN | Acide ribonucléique | In French = РНК | Рибонуклеинова киселина | In Russian = ARN | حمض ريبي نووي | In Arabic = TRN | Trenkenn ribonukleek | In Breton = ARN | Àcid ribonucleic | In Catalan = RNK | Ribonukleová kyselina | In Czech = RNA | Ribonuklea acido | In Esperanto = RNS | Ribonukleinsäure | In German = ARN | Azido erribonukleiko | In Basque = ARN | Ácido ribonucleico | In Spanish = RNH | Ribonukleiinhape | In Estonian = RKS | Ríbósakjarnasýru | In Icelandic |
In Latin | → Genetics → Biochemistry, biophysics |
| AsAc | Astronautica Acta | In Latin | → Serial publications, periodicals → Spaceflight engineering, astronautics |
| ASFAS | Academia Scientiarum Fennica Annales Series Physica | In Latin | → Serial publications, periodicals → Physics |
| ASSF | Acta Societatis Scientarum Fennicae | In Latin | → Serial publications, periodicals → Mathematics and natural sciences |
| AUC | Ab urbe condita | In Latin | |
| BBA | Biochimica et Biophysica Acta | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| BBUSM | Babes-Bolyai, Universitas, Studia, Series Physica | In Latin | → Serial publications, periodicals → Physics |
| BBUSS | Babes-Bolyai, Universitas, Studia, Series Mathematica | In Latin | → Serial publications, periodicals → Mathematics |
| BCS | Bibliotheca Classica Selecta | In Latin | → Libraries |
| Be | Beryllium = Be | Berîlyûm | In Kurdish = Be | Berillium | In Afrikaans = Be | بيريليوم | In Arabic = Be | Beriliu | In Asturian = Be | Berillium | In Azerbaijani = Be | Берылій | In Belarusian = Be | Берилий | In Bulgarian = Be | Berilijum | In Bosnian = Be | Berilliu | In Corsican = Be | Beryllium | In Czech = Be | Берилли | In Chuvash = Be | Beriliwm | In Welsh = Be | Beryllium | In Danish = Be | Beryllium | In German = Be | Βηρύλλιο | In Greek = Be | Beryllium | In English = Be | Berilio | In Esperanto = Be | Berilio | In Spanish = Be | Berüllium | In Estonian = Be | Berilio | In Basque = Be | بریلیوم | In Persian = Be | Beryllium | In Finnish = Be | Berili | In Friulian = Be | Beirilliam | In Irish = Be | Berilio | In Galician = Be | בריליום | In Hebrew = Be | बेरिलियम | In Hindi = Be | Berilij | In Croatian = Be | Berilyòm | In Haitian Creole = Be | Berillium | In Hungarian = Be | Բերիլիում | In Armenian = Be | Berilium | In Indonesian = Be | Berilio | In Ido = Be | Beryllín | In Icelandic = Be | Berillio | In Italian = Be | ベリリウム | In Japanese = Be | jinmrberilo | In Lojban = Be | 베릴륨 | In Korean = Be | Beryllium | In Letzeburgesh = Be | Berilis | In Lithuanian = Be | Berilijs | In Latvian = Be | Konuuku | In Māori = Be | Берилиум | In Macedonian = Be | ബെറിലിയം | In Malayalam = Be | Berilium | In Malay = Be | Iztactlāltepoztli | En Nahuatl = Be | Beryllium | In Low German = Be | Beryllium | In Dutch = Be | Beryllium | In Nynorsk = Be | Beryllium | In Norwegian = Be | Berilli | In Occitan = Be | Beryl | In Polish = Be | Berílio | In Portuguese = Be | Berilyu | In Quechua = Be | Beriliu | In Romanian = Be | Бериллий | In Russian = Be | Berilijum | In Serbo-Croatian = Be | Berýlium | In Slovak = Be | Berilij | In Slovenian = Be | Берилијум | In Serbian = Be | Beryllium | In Swedish = Be | Berili | In Swahili = Be | เบริลเลียม | In Thai = Be | Berilyum | In Turkish = Be | Берилій | In Ukrainian = Be | Berilliy | In Uzbek = Be | Berili | In Vietnamese = Be | 铍 | In Chinese |
In Latin | → Chemistry |
| BO | Bibliotheca Orientalis | In Latin | → Libraries → Language, linguistics, literature → Geography, biography, history |
| BOCCFR | Bocconia frutescens | In Latin | → Agricultural sciences |
| C | Carbonium = C | Carbone | In French = C | Koolstof | In Afrikaans = C | كربون | In Arabic = C | Carbonu | In Asturian = C | Karbon | In Azerbaijani = C | Вуглярод | In Belarusian = C | Въглерод | In Bulgarian = C | কার্বন | In Bengali = C | Carboni | In Catalan = C | Carboniu | In Corsican = C | Uhlík | In Czech = C | Carbon | In Welsh = C | Carbon | In Danish = C | Kohlenstoff | In German = C | Άνθρακας | In Greek = C | Carbon | In English = C | Karbono | In Esperanto = C | Carbono | In Spanish = C | Süsinik | In Estonian = C | Karbono | In Basque = C | کربن | In Persian = C | Hiili | In Finnish = C | Carboni | In Friulian = C | Carbón | In Irish = C | Gualan | In Galician = C | Carbono | In Galician = C | કાર્બન | In Gujarati = C | פחמן | In Hebrew = C | कार्बन | In Hindi = C | Ugljik | In Croatian = C | Kabòn | In Haitian Creole = C | Szén | In Hungarian = C | Ածխածին | In Armenian = C | Carbon | In Interlingua = C | Karbon | In Indonesian = C | Karbo | In Ido = C | Kolefni | In Icelandic = C | Carbonio | In Italian = C | 炭素 | In Japanese = C | tabno | In Lojban = C | ಇಂಗಾಲ | In Kannada = C | 탄소 | In Korean = C | Karbon | In Kurdish = C | Kuelestoff | In Letzeburgesh = C | Koolstof | In Limburgish = C | Carbòni | In Lombard = C | Kaboni | In Lingala = C | Anglis | In Lithuanian = C | Ogleklis | In Latvian = C | Waro | In Māori = C | Јаглерод | In Macedonian = C | കാര്ബണ് | In Malayalam = C | Нүүрстөрөгч | In Mongolian = C | कार्बन | In Marathi = C | Karbon | In Malay = C | Tecolli | En Nahuatl = C | Kohlenstoff | In Low German = C | Koolstof | In Dutch = C | Karbon | In Nynorsk = C | Karbon | In Norwegian = C | Karbo | NOV = C | Carbòni | In Occitan = C | Węgiel | In Polish = C | Carbono | In Portuguese = C | K'illimsayaq | In Quechua = C | Carbon | In Romanian = C | Углерод | In Russian = C | Carbòniu | In Sicilian = C | Ugljenik | In Serbo-Croatian = C | Uhlík | In Slovak = C | Ogljik | In Slovenian = C | Karboni | In Albanian = C | Угљеник | In Serbian = C | Karbon | In Sundanese = C | Kol | In Swedish = C | Kaboni | In Swahili = C | கரிமம் | In Tamil = C | Карбон | In Tajik = C | คาร์บอน | In Thai = C | Karbon | In Tagalog = C | Karbon | In Turkish = C | Вуглець | In Ukrainian = C | Uglerod | In Uzbek = C | Cacbon | In Vietnamese = C | Carboun | In Vlaams = C | Carbone | In Walloon = C | 碳 | In Wu Chinese = C | קוילנשטאף | In Yiddisch = C | 碳 | In Chinese |
In Latin | → Chemistry |
| C&M | Classica & Mediævalia | In Latin | → Serial publications, periodicals |
| Ca | Calcium = Ca | Calcium | In English = Ca | Kalsium | In Afrikaans = Ca | Calciu | In Asturian = Ca | ক্যালসিয়াম | In Bengali = Ca | Kalcijum | In Bosnian = Ca | Калций | In Bulgarian = Ca | Calci | In Catalan = Ca | Vápník | In Czech = Ca | Calciu | In Corsican = Ca | Calsiwm | In Welsh = Ca | Calcium | In Danish = Ca | Calcium | In German = Ca | Kaltsium | In Estonian = Ca | Ασβέστιο | In Greek = Ca | Calcio | In Spanish = Ca | Kalcio | In Esperanto = Ca | Kaltzio | In Basque = Ca | Calcium | In French = Ca | Calci | In Friulian = Ca | Kelkium | In Manx = Ca | Calcio | In Galician = Ca | 칼슘 | In Korean = Ca | Կալցիում | In Armenian = Ca | काल्सियम | In Hindi = Ca | Kalcij | In Croatian = Ca | Kalcio | In Ido = Ca | Kalsium | In Indonesian = Ca | Kalsín | In Icelandic = Ca | Calcio | In Italian = Ca | Kalisi | In Swahili = Ca | Kalsyòm | In Haitian Creole = Ca | Kalsiyûm | In Kurdish = Ca | Kalcijs | In Latvian = Ca | Kalzium | In Letzeburgesh = Ca | Kalcis | In Lithuanian = Ca | bogjinme | In Lojban = Ca | Kalcium | In Hungarian = Ca | Калциум | In Macedonian = Ca | കാല്സ്യം | In Malayalam = Ca | Konupūmā | In Māori = Ca | Kalsium | In Malay = Ca | Tenextepoztli | En Nahuatl = Ca | Calcium | In Dutch = Ca | カルシウム | In Japanese = Ca | Kalsium | In Norwegian = Ca | Kalsium | In Nynorsk = Ca | Calci | In Occitan = Ca | Kalsiy | In Uzbek = Ca | Calcium | In Low German = Ca | Wapń | In Polish = Ca | Cálcio | In Portuguese = Ca | Calciu | In Romanian = Ca | Isku q'illay | In Quechua = Ca | Кальций | In Russian = Ca | Kalciumi | In Albanian = Ca | Calciu | In Sicilian = Ca | Vápnik | In Slovak = Ca | Kalcij | In Slovenian = Ca | Калцијум | In Serbian = Ca | Kalcij | In Serbo-Croatian = Ca | Calcium | In Saterland Frisian = Ca | Kalsium | In Sundanese = Ca | Kalsium | In Finnish = Ca | Kalcium | In Swedish = Ca | கல்சியம் | In Tamil = Ca | కాల్షియమ్ | In Telugu = Ca | แคลเซียม | In Thai = Ca | Canxi | In Vietnamese = Ca | Калсий | In Tajik = Ca | Kalsiyum | In Turkish = Ca | Кальцій | In Ukrainian = Ca | 钙 | In Chinese |
In Latin | → Chemistry |
| CIJ | Corpus Inscriptionum Judaicarum | In Latin | → Language, linguistics, literature → Judaism |
| CIL | Corpus Inscriptionum Latinanum | In Latin | → Language, linguistics, literature |
| CINP | Collegium Internationale Neuro-Psychopharmacologicum | In Latin | → Pharmacology, toxicology → Neurology |
| CIRB | Corpus Inscriptionum Regni Bosporani | In Latin | |
| CN | Consociatio Nationum (www.un.org) = UN | Unuigintaj Nacioj | In Esperanto = ONU | Organisation des Nations Unies | In French = ONU | Organizazión d'as Nazions Unitas | In Aragonese = ААН | Арганіза́цыя Аб'ядна́ных На́цый | In Belarusian = VN | Verenigde Nasies | In Afrikaans = ONU | Organización de les Naciones Uníes | In Asturian = OOH | Организацията на обединените нации | In Bulgarian = ABU | Aozadur ar Broadoù Unanet | In Breton = ПНО | Пĕрлешнĕ Нацисен Организацийĕ | In Chuvash = FN | Feriene Naasjes | In Frisian = UN | United Nations | In English = NBE | Nazio Batuen Erakundea | In Basque = ONU | Organización das Nacións Unidas | In Occitan = UN | Unuiĝinta Naciaro | In Esperanto = UN | Ujedinjeni Narodi | In Bosnian = FN | Forenede Nationer | In Danish = UN | Unionita Nacioni | In Ido = ONU | Organizzazione delle Nazioni Unite | In Italian = KU | Kenedhlow Unys | In Cornish = ONU | Organització de les Nacions Unides | In Catalan = ΟΗΕ | Οργανισμός Ηνωμένων Εθνών | In Greek = ΗΕ | Ηνωμένα Έθνη | In Greek = ONU | Organización de las Naciones Unidas | In Spanish = VN | Vereinte Nationen | In German = VN | Verenigde Naties | In Dutch = VN | Vereent Natiounen | In Letzeburgesh = ООН | Организация Oбъединённых Hаций | In Russian = ONU | Organisacion des Nacions unies | In Franco-Provençal = ONZ | Organizacja Narodów Zjednoczonych | In Polish = BMT | Birlashgan Millatlar Tashkiloti | In Uzbek = ООН | Організація Об'єднаних Націй | In Ukrainian = BM | Birleşmiş Milletler | In Turkish = LHiQ | Liên Hiệp Quốc | In Vietnamese = OKB | Organizata e Kombeve të Bashkuara | In Albanian = OSN | Organizácia Spojených národov | In Slovak = OZN | Organizacija Združenih Narodov | In Slovenian = УН | Уједињене нације | In Serbian = FN | Förenta nationerna | In Swedish = UM | Umoja wa Mataifa | In Swahili = NU | Nazzioni Uniti | In Sicilian = ONU | Organizaţia Naţiunilor Unite | In Romanian = ONU | Organização das Nações Unidas | In Portuguese = VN | Vereenten Natschonen | In Low German = ST | Sameindu Tjóðir | In Faroese = HN | Huñusqa Nasyunkuna | In Quechua = PBB | Pertubuhan Bangsa-bangsa Bersatu | In Malay = NA | Náisiúin Aontaithe | In Irish = ÜRO | Ühinenud Rahvaste Organisatsioon | In Estonian = SÞ | Sameinuðu þjóðanna | In Icelandic |
In Latin | → International relations → United Nations |
| CoMat | Compositio Mathematica | In Latin | → Serial publications, periodicals → Mathematics |
| CPLG | Commentaria et Lexica Graeca in Papyris reperta | In Latin | → Language, linguistics, literature |
| CPMCM | Commentationes Physico-Mathematicae et Chemico-Medicae | In Latin | → Serial publications, periodicals → Mathematics → Physics → Chemistry → Medicine |
| CSEL | Corpus Scriptorum Ecclesiasticorum Latinorum = CSEL | Corpus der lateinischen Kirchenväter | In German = CSEL | Corpus of the Latin Church Fathers | In English |
In Latin | → Libraries → Roman catholic church |
| CV | Curriculum Vitae | In Latin | → Labour, labour economics |
| EMH | Editiones Medicorum Helveticorum | In Latin | → Serial publications, periodicals → Medicine |
| F | Fluor = F | Fluor | In French = F | Fluoor | In Afrikaans = F | فلور | In Arabic = F | Flúor | In Asturian = F | Flüor | In Azerbaijani = F | ফ্লুরিন | In Bengali = F | Fluor | In Bosnian = F | Fluor | In Catalan = F | Fluoru | In Corsican = F | Fluor | In Czech = F | Фтор | In Chuvash = F | Fflworin | In Welsh = F | Fluor | In Danish = F | Fluor | In German = F | Φθόριο | In Greek = F | Fluorine | In English = F | Fluoro | In Esperanto = F | Flúor | In Spanish = F | Fluor | In Estonian = F | Fluor | In Basque = F | فلوئور | In Persian = F | Fluori | In Finnish = F | Flúor | In Galician = F | פלואור | In Hebrew = F | फ्लोरिन | In Hindi = F | Fluor | In Croatian = F | Fliyò | In Haitian Creole = F | Fluor | In Hungarian = F | Ֆտոր | In Armenian = F | Fluor | In Indonesian = F | Fluoro | In Ido = F | Flúor | In Icelandic = F | Fluoro | In Italian = F | フッ素 | In Japanese = F | li'orkliru | In Lojban = F | 플루오린 | In Korean = F | Fluor | In Kurdish = F | Fluor | In Letzeburgesh = F | Fluoras | In Lithuanian = F | Fluors | In Latvian = F | Hau kōwhai | In Māori = F | Флуор | In Macedonian = F | ഫ്ലൂറിന് | In Malayalam = F | फ्लोरिन | In Marathi = F | Fluor | In Dutch = F | Fluor | In Nynorsk = F | Fluor | In Norwegian = F | Fluore | NOV = F | Fluor | In Occitan = F | Fluor | In Polish = F | Flúor | In Portuguese = F | Flur | In Quechua = F | Fluor | In Romanian = F | Фтор | In Russian = F | Fluoru | In Sicilian = F | Fluor | In Serbo-Croatian = F | Fluór | In Slovak = F | Fluor | In Slovenian = F | Флуор | In Serbian = F | Fluor | In Swedish = F | Florini | In Swahili = F | ஃவுளூரின் | In Tamil = F | Фтор | In Tajik = F | ฟลูออรีน | In Thai = F | Flor | In Turkish = F | Флуор | In Ukrainian = F | Ftor | In Uzbek = F | Flo | In Vietnamese = F | 氟 | In Chinese |
In Latin | → Chemistry |
| FACM | Functiones et Approximatio, Commentarii Mathematici | In Latin | → Serial publications, periodicals → Mathematics |
| FInfo | Fundamenta Informaticae | In Latin | → Serial publications, periodicals → Computer science |
| FMH | Foederatio Medicorum Helveticorum | In Latin | → Organizations and associations → Medicine |
| GeCoA | Geochimica et Cosmochimica Acta | In Latin | → Serial publications, periodicals → Geochemistry → Astronomy |
| GeGe | Geophysica et Geodaetica | In Latin | → Serial publications, periodicals → Geodesy, cartography → Geophysics |
| Gen | Genetica | In Latin | → Serial publications, periodicals → Genetics |
| GeoD | Geometriae Dedicata | In Latin | → Serial publications, periodicals → Geometry |
| GeoNr | Geophysica Norvegica | In Latin | → Serial publications, periodicals → Geophysics |
| H | Hydrogenium = H | Hydrogène | In French = H | Waterstof | In Afrikaans = H | هيدروجين | In Arabic = H | Hidróxenu | In Asturian = H | Hidrogen | In Azerbaijani = H | Wassastoff | In Austro-Bavarian = H | Вадарод | In Belarusian = H | Водород | In Bulgarian = H | হাইড্রোজেন | In Bengali = H | Hidrogen | In Breton = H | Vodonik | In Bosnian = H | Hidrogen | In Catalan = H | Idroheno | In Cebuano = H | Idrogenu | In Corsican = H | Vodík | In Czech = H | Водород | In Chuvash = H | Hydrogen | In Welsh = H | Brint | In Danish = H | Wasserstoff | In German = H | Υδρογόνο | In Greek = H | Hydrogen | In English = H | Hidrogeno | In Esperanto = H | Hidrógeno | In Spanish = H | Vesinik | In Estonian = H | Hidrogeno | In Basque = H | هیدروژن | In Persian = H | Vety | In Finnish = H | Hydrogen | In Faroese = H | Idrogjen | In Friulian = H | Hidrigin | In Irish = H | Haidreagain | In Scottish Gaelic = H | Hidróxeno | In Galician = H | હાઈડ્રોજન | In Gujarati = H | מימן | In Hebrew = H | हाइड्रोजन | In Hindi = H | Vodik | In Croatian = H | Idwojèn | In Haitian Creole = H | Hidrogén | In Hungarian = H | Ջրածին | In Armenian = H | Hydrogeno | In Interlingua = H | Hidrogen | In Indonesian = H | Hidrogeno | In Ido = H | Vetni | In Icelandic = H | Idrogeno | In Italian = H | 水素 | In Japanese = H | წყალბადი | In Georgian = H | អ៊ីដ្រូសែន | In Khmer (Cambodian) = H | ಜಲಜನಕ | In Kannada = H | 수소 | In Korean = H | Hîdrojen | In Kurdish = H | Waasserstoff | In Letzeburgesh = H | Waterstof | In Limburgish = H | Idrògen | In Lombard = H | Idrojɛ́ní | In Lingala = H | Vandenilis | In Lithuanian = H | Ūdeņradis | In Latvian = H | Hauwai | In Māori = H | Водород | In Macedonian = H | ഹൈഡ്രജന് | In Malayalam = H | Устөрөгч | In Mongolian = H | हायड्रोजन | In Marathi = H | Hidrogen | In Malay = H | Āyōcoxqui | En Nahuatl = H | Waterstoff | In Low German = H | Waterstof | In Dutch = H | Hydrogen | In Nynorsk = H | Hydrogen | In Norwegian = H | Hidrogene | NOV = H | Idrogèn | In Occitan = H | Hiidrojen | In Norfuk (Pitcairn-Norfo = H | Wodór | In Polish = H | Hidrogénio | In Portuguese = H | Yakuchaq | In Quechua = H | Hidrogen | In Romanian = H | Водород | In Russian = H | हाइड्रोजन | In Sanskrit = H | Idrògginu | In Sicilian = H | Vodik | In Serbo-Croatian = H | Vodík | In Slovak = H | Vodik | In Slovenian = H | Hidrogjeni | In Albanian = H | Водоник | In Serbian = H | Hidrogén | In Sundanese = H | Väte | In Swedish = H | Hidrojeni | In Swahili = H | ஹைட்ரஜன் | In Tamil = H | హైడ్రోజన్ | In Telugu = H | Ҳидроген | In Tajik = H | ไฮโดรเจน | In Thai = H | Idroheno | In Tagalog = H | Hidrojen | In Turkish = H | Водень | In Ukrainian = H | آبگر | UR = H | Vodorod | In Uzbek = H | Hiđrô | In Vietnamese = H | Woaterstof | In Vlaams = H | Idrodjinne | In Walloon = H | 氢 | In Wu Chinese = H | היידראזשן | In Yiddisch = H | 氢 | In Chinese |
In Latin | → Chemistry |
| InMat | Inventiones Mathematicae | In Latin | → Serial publications, periodicals → Mathematics |
| INRI | Iesus Nazarenus Rex Iudaeorum | In Latin | → Christianity |
| K | Kalium = K | Potassium | In English = K | Kalium | In Afrikaans = K | بوتاسيوم | In Arabic = K | Potasiu | In Asturian = K | পটাশিয়াম | In Bengali = K | Калій | In Belarusian = K | Kalijum | In Bosnian = K | Калий | In Bulgarian = K | Potassi | In Catalan = K | Draslík | In Czech = K | Potassiu | In Corsican = K | Potasiwm | In Welsh = K | Kalium | In Danish = K | Kalium | In German = K | ޕޮޓޭސިއަމް | In Dhivehi = K | Kaalium | In Estonian = K | Κάλιο | In Greek = K | Potasio | In Spanish = K | Kalio | In Esperanto = K | Potasio | In Basque = K | پتاسیم | In Persian = K | Potassium | In French = K | Potassi | In Friulian = K | Potaisiam | In Irish = K | Potashum | In Manx = K | Potasio | In Galician = K | 칼륨 | In Korean = K | Կալիում | In Armenian = K | पोटासियम | In Hindi = K | Kalij | In Croatian = K | Kalio | In Ido = K | Kalium | In Indonesian = K | Kalín | In Icelandic = K | Potassio | In Italian = K | אשלגן | In Hebrew = K | Kalium | JV = K | ಪೊಟ್ಯಾಶಿಯಮ್ | In Kannada = K | Kali | In Swahili = K | Potasyòm | In Haitian Creole = K | Qelye | In Kurdish = K | Kālijs | In Latvian = K | Kalium | In Letzeburgesh = K | Kalis | In Lithuanian = K | sodnrkali | In Lojban = K | Kálium | In Hungarian = K | Калиум | In Macedonian = K | പൊട്ടാസ്യം | In Malayalam = K | Konurehu | In Māori = K | Kalium | In Malay = K | Kalium | In Dutch = K | カリウム | In Japanese = K | Kalium | In Norwegian = K | Kalium | In Nynorsk = K | Kalium | NOV = K | Potassi | In Occitan = K | Kaliy | In Uzbek = K | Kalium | In Low German = K | Potas | In Polish = K | Potássio | In Portuguese = K | Potasiu | In Romanian = K | Kalyu | In Quechua = K | Калий | In Russian = K | Kaliumi | In Albanian = K | Putassiu | In Sicilian = K | Draslík | In Slovak = K | Kalij | In Slovenian = K | Калијум | In Serbian = K | Kalij | In Serbo-Croatian = K | Kalium | In Finnish = K | Kalium | In Swedish = K | โพแทสเซียม | In Thai = K | Kali | In Vietnamese = K | Калий | In Tajik = K | Potasyum | In Turkish = K | Калій | In Ukrainian = K | وٹاشیم | UR = K | Potassiom | In Walloon = K | Kalium | In Vlaams = K | 钾 | In Chinese |
In Latin | → Chemistry |
| Li | Lithium = Li | Litium | In Afrikaans = Li | ليثيوم | In Arabic = Li | Litiu | In Asturian = Li | Літый | In Belarusian = Li | Литий | In Bulgarian = Li | লিথিয়াম | In Bengali = Li | Litijum | In Bosnian = Li | Liti | In Catalan = Li | Litiu | In Corsican = Li | Lithium | In Czech = Li | Лити | In Chuvash = Li | Lithiwm | In Welsh = Li | Lithium | In Danish = Li | Lithium | In German = Li | Λίθιο | In Greek = Li | Lithium | In English = Li | Litio | In Esperanto = Li | Litio | In Spanish = Li | Liitium | In Estonian = Li | Litio | In Basque = Li | لیتیوم | In Persian = Li | Litium | In Finnish = Li | Liti | In Friulian = Li | Litiam | In Irish = Li | Litio | In Galician = Li | ליתיום | In Hebrew = Li | लिथियम | In Hindi = Li | Litij | In Croatian = Li | Lityòm | In Haitian Creole = Li | Lítium | In Hungarian = Li | Լիթիում | In Armenian = Li | Litium | In Indonesian = Li | Litio | In Ido = Li | Litín | In Icelandic = Li | Litio | In Italian = Li | リチウム | In Japanese = Li | roksodna | In Lojban = Li | ლითიუმი | In Georgian = Li | 리튬 | In Korean = Li | Lithium | In Kölsch = Li | Lîtyûm | In Kurdish = Li | Lithium | In Letzeburgesh = Li | Litis | In Lithuanian = Li | Litijs | In Latvian = Li | Литиум | In Macedonian = Li | ലിഥിയം | In Malayalam = Li | Litium | In Malay = Li | Lithium | In Low German = Li | Lithium | In Dutch = Li | Litium | In Nynorsk = Li | Litium | In Norwegian = Li | Liti | In Occitan = Li | Lit | In Polish = Li | Lítio | In Portuguese = Li | Lityu | In Quechua = Li | Litiu | In Romanian = Li | Литий | In Russian = Li | लिथियम | In Sanskrit = Li | Litij | In Serbo-Croatian = Li | Lítium | In Slovak = Li | Litij | In Slovenian = Li | Litiumi | In Albanian = Li | Литијум | In Serbian = Li | Litium | In Swedish = Li | Lithi | In Swahili = Li | லித்தியம் | In Tamil = Li | ลิเทียม | In Thai = Li | Lityum | In Turkish = Li | Літій | In Ukrainian = Li | Litiy | In Uzbek = Li | Liti | In Vietnamese = Li | Litiom | In Walloon = Li | ליטיום | In Yiddisch = Li | 锂 | In Chinese |
In Latin | → Chemistry |
| LI | Lingvisticæ Investigationes | In Latin | → Linguistics |
| LIMC | Lexicon Iconographicum Mythologiae Classicae | In Latin | → Encyclopaedias, reference works → Religion, theology → Language, linguistics, literature |
| ManGe | Manuscripta Geodaetica | In Latin | → Serial publications, periodicals → Geodesy, cartography |
| Mg | Magnesium = Mg | Magnésium | In French = Mg | Magnesium | In Afrikaans = Mg | مغنيزيوم | In Arabic = Mg | Magnesiu | In Asturian = Mg | Maqnezium | In Azerbaijani = Mg | Магній | In Belarusian = Mg | Магнезий | In Bulgarian = Mg | ম্যাগনেসিয়াম | In Bengali = Mg | Magnezijum | In Bosnian = Mg | Magnesi | In Catalan = Mg | Magnesium | In Cebuano = Mg | Magnesiu | In Corsican = Mg | Hořčík | In Czech = Mg | Magnesiwm | In Welsh = Mg | Magnesium | In Danish = Mg | Magnesium | In German = Mg | މެގްނީޒިއަމް | In Dhivehi = Mg | Μαγνήσιο | In Greek = Mg | Magnezio | In Esperanto = Mg | Magnesio | In Spanish = Mg | Magneesium | In Estonian = Mg | Magnesio | In Basque = Mg | منیزیم | In Persian = Mg | Magnesium | In Finnish = Mg | Magnesi | In Friulian = Mg | Magnesio | In Galician = Mg | Magnaishum | In Manx = Mg | מגנזיום | In Hebrew = Mg | मेगनीसियम | In Hindi = Mg | Magnezij | In Croatian = Mg | Manyezyòm | In Haitian Creole = Mg | Magnézium | In Hungarian = Mg | Մագնիում | In Armenian = Mg | Magnesium | In Indonesian = Mg | Magnezio | In Ido = Mg | Magnesín | In Icelandic = Mg | Magnesio | In Italian = Mg | マグネシウム | In Japanese = Mg | lidgusyjinme | In Lojban = Mg | Magnesium | JV = Mg | მაგნიუმი | In Georgian = Mg | ಮ್ಯಗ್ನೀಶಿಯಮ್ | In Kannada = Mg | 마그네슘 | In Korean = Mg | Magnezyûm | In Kurdish = Mg | Magnesium | In Letzeburgesh = Mg | Magnis | In Lithuanian = Mg | Magnijs | In Latvian = Mg | Konupora | In Māori = Mg | Магнезиум | In Macedonian = Mg | മഗ്നീഷ്യം | In Malayalam = Mg | Magnesium | In Malay = Mg | Magnesium | In Low German = Mg | Magnesium | In Dutch = Mg | Magnesium | In Nynorsk = Mg | Magnesium | In Norwegian = Mg | Magnèsi | In Occitan = Mg | Magnez | In Polish = Mg | Magnésio | In Portuguese = Mg | Qunta q'illay | In Quechua = Mg | Magneziu | In Romanian = Mg | Магний | In Russian = Mg | Magnesiu | In Sicilian = Mg | Magnezij | In Serbo-Croatian = Mg | Horčík | In Slovak = Mg | Magnezij | In Slovenian = Mg | Magneziumi | In Albanian = Mg | Магнезијум | In Serbian = Mg | Magnesium | In Swedish = Mg | Magnesi | In Swahili = Mg | மக்னீசியம் | In Tamil = Mg | Магний | In Tajik = Mg | แมกนีเซียม | In Tajik = Mg | Magnezyum | In Turkish = Mg | Магній | In Ukrainian = Mg | Magniy | In Uzbek = Mg | Magiê | In Vietnamese = Mg | 镁 | In Chinese = Mg | Magnesium | In English |
In Latin | → Chemistry |
| MH | Museum Helveticum | In Latin | → Museums |
| MinDe | Mineralium Deposita | In Latin | → Serial publications, periodicals → Mineralogy |
| MSAIQ | Societa Astronomica Italiana - Memorie Quarter | In Latin | → Serial publications, periodicals → Astronomy |
| N | Nitrogenium = N | Azote | In French = N | Stikstof | In Afrikaans = N | نيتروجين | In Arabic = N | Nitróxenu | In Asturian = N | Azot | In Azerbaijani = N | Азот | In Belarusian = N | Азот | In Bulgarian = N | নাইট্রোজেন | In Bengali = N | Dušik | In Bosnian = N | Nitrogen | In Catalan = N | Azotu | In Corsican = N | Dusík | In Czech = N | Азот | In Chuvash = N | Nitrogen | In Welsh = N | Kvælstof | In Danish = N | Stickstoff | In German = N | Άζωτο | In Greek = N | Nitrogen | In English = N | Azoto | In Esperanto = N | Nitrógeno | In Spanish = N | Lämmastik | In Estonian = N | Nitrogeno | In Basque = N | نیتروژن | In Persian = N | Typpi | In Finnish = N | Azôt | In Friulian = N | Nítrigin | In Irish = N | Nitróxeno | In Galician = N | નાઇટ્રોજન | In Gujarati = N | Neetragien | In Manx = N | חנקן | In Hebrew = N | नाइट्रोजन | In Hindi = N | Dušik | In Croatian = N | Azòt | In Haitian Creole = N | Nitrogén | In Hungarian = N | Ազոտ | In Armenian = N | Nitrogeno | In Interlingua = N | Nitrogen | In Indonesian = N | Nitro | In Ido = N | Nitur | In Icelandic = N | Azoto | In Italian = N | 窒素 | In Japanese = N | trano | In Lojban = N | აზოტი | In Georgian = N | 질소 | In Korean = N | Stickstoff | In Kölsch = N | Nîtrojen | In Kurdish = N | Stéckstoff | In Letzeburgesh = N | Stikstof | In Limburgish = N | Azoti | In Lingala = N | Azotas | In Lithuanian = N | Slāpeklis | In Latvian = N | Hauota | In Māori = N | Азот | In Macedonian = N | നൈട്രജന് | In Malayalam = N | Азот | In Mongolian = N | नायट्रोजन | In Marathi = N | Ehēcatehuiltic | En Nahuatl = N | Stickstoff | In Low German = N | Stikstof | In Dutch = N | Nitrogen | In Nynorsk = N | Nitrogen | In Norwegian = N | Nitrogene | NOV = N | Azòt | In Occitan = N | Nitrogen | In Kapampangan = N | Azot | In Polish = N | Nitrogénio | In Portuguese = N | Qullpachaq | In Quechua = N | Azot | In Romanian = N | Азот | In Russian = N | Azzotu | In Sicilian = N | Dušik | In Serbo-Croatian = N | Dusík | In Slovak = N | Dušik | In Slovenian = N | Azoti | In Albanian = N | Азот | In Serbian = N | Kväve | In Swedish = N | Nitrojeni | In Swahili = N | நைட்ரஜன் | In Tamil = N | నత్రజని | In Telugu = N | Азот | In Tajik = N | ไนโตรเจน | In Thai = N | Azot | In Turkish = N | Азот | In Ukrainian = N | Azot | In Uzbek = N | Nitơ | In Vietnamese = N | 氮 | In Chinese |
In Latin | → Chemistry |
| Na | Natrium = Na | Sodium | In French = Na | Natrium | In Afrikaans = Na | صوديوم | In Arabic = Na | Sodiu | In Asturian = Na | Натрый | In Belarusian = Na | Натрий | In Bulgarian = Na | সোডিয়াম | In Bengali = Na | Natrijum | In Bosnian = Na | Sodi | In Catalan = Na | Sodiu | In Corsican = Na | Sodík | In Czech = Na | Sodiwm | In Welsh = Na | Natrium | In Danish = Na | Natrium | In German = Na | ސޯޑިއަމް | In Dhivehi = Na | Νάτριο | In Greek = Na | Sodium | In English = Na | Natrio | In Esperanto = Na | Sodio | In Spanish = Na | Naatrium | In Estonian = Na | Sodio | In Basque = Na | سدیم | In Persian = Na | Natrium | In Finnish = Na | Sodi | In Friulian = Na | Sóidiam | In Irish = Na | Sodio | In Galician = Na | Sodjum | In Manx = Na | נתרן | In Hebrew = Na | सोडियम | In Hindi = Na | Natrij | In Croatian = Na | Sodyòm | In Haitian Creole = Na | Nátrium | In Hungarian = Na | Նատրիում | In Armenian = Na | Natrium | In Indonesian = Na | Natro | In Ido = Na | Natrín | In Icelandic = Na | Sodio | In Italian = Na | ナトリウム | In Japanese = Na | sodna | In Lojban = Na | Natrium | JV = Na | ნატრიუმი | In Georgian = Na | ಸೋಡಿಯಮ್ | In Kannada = Na | 나트륨 | In Korean = Na | Natrîyûm | In Kurdish = Na | Natrium | In Letzeburgesh = Na | Sodu | In Lingala = Na | Natris | In Lithuanian = Na | Nātrijs | In Latvian = Na | Konutai | In Māori = Na | Натриум | In Macedonian = Na | സോഡിയം | In Malayalam = Na | सोडियम | In Marathi = Na | Natrium | In Low German = Na | Natrium | In Dutch = Na | Natrium | In Nynorsk = Na | Natrium | In Norwegian = Na | Natrium | NOV = Na | Sôdgium | In Norman = Na | Sòdi | In Occitan = Na | Sód | In Polish = Na | Sódio | In Portuguese = Na | Natriyu | In Quechua = Na | Sodiu | In Romanian = Na | Натрий | In Russian = Na | Sodiu | In Sicilian = Na | Natrij | In Serbo-Croatian = Na | Sodík | In Slovak = Na | Natrij | In Slovenian = Na | Natriumi | In Albanian = Na | Натријум | In Serbian = Na | Natrium | In Swedish = Na | Natiri | In Swahili = Na | சோடியம் | In Tamil = Na | సోడియమ్ | In Telugu = Na | Натрий | In Tajik = Na | โซเดียม | In Thai = Na | Sodyum | In Turkish = Na | Натрій | In Ukrainian = Na | Natriy | In Uzbek = Na | Natri | In Vietnamese = Na | Sodiom | In Walloon = Na | 钠 | In Chinese |
In Latin | → Chemistry |
| NT | Novum Testamentum | In Latin | → Serial publications, periodicals → Christianity |
| O | Oxygenium = O | Oxygène | In French = O | Suurstof | In Afrikaans = O | Sauerstoff | In Tosk = O | أكسجين | In Arabic = O | Oxíxenu | In Asturian = O | Oksigen | In Azerbaijani = O | Sauastoff | In Austro-Bavarian = O | Кісларод | In Belarusian = O | Кислород | In Bulgarian = O | অক্সিজেন | In Bengali = O | Oksigen | In Breton = O | Kiseonik | In Bosnian = O | Oxigen | In Catalan = O | Ossigenu | In Corsican = O | Kyslík | In Czech = O | Йӳçлĕк | In Chuvash = O | Ocsigen | In Welsh = O | Ilt | In Danish = O | Sauerstoff | In German = O | Οξυγόνο | In Greek = O | Oxygen | In English = O | Oksigeno | In Esperanto = O | Oxígeno | In Spanish = O | Hapnik | In Estonian = O | Oxigeno | In Basque = O | اکسیژن | In Persian = O | Happi | In Finnish = O | Ossigjen | In Friulian = O | Soerstof | In Frisian = O | Ocsaigin | In Irish = O | Àile-beatha | In Scottish Gaelic = O | Osíxeno | In Galician = O | ઑક્સીજન | In Gujarati = O | Ocsygien | In Manx = O | חמצן | In Hebrew = O | आक्सीजन | In Hindi = O | Kisik | In Croatian = O | Kislik | In Upper Sorbian = O | Oksijèn | In Haitian Creole = O | Oxigén | In Hungarian = O | Թթվածին | In Armenian = O | Oxygeno | In Interlingua = O | Oksigen | In Indonesian = O | Oxo | In Ido = O | Súrefni | In Icelandic = O | Ossigeno | In Italian = O | 酸素 | In Japanese = O | kijno | In Lojban = O | Oksigen | JV = O | ჟანგბადი | In Georgian = O | ಆಮ್ಲಜನಕ | In Kannada = O | 산소 | In Korean = O | Sauerstoff | In Kölsch = O | Oksîjen | In Kurdish = O | Sauerstoff | In Letzeburgesh = O | Zuurstof | In Limburgish = O | Oksijɛ́ní | In Lingala = O | Deguonis | In Lithuanian = O | Skābeklis | In Latvian = O | Hāora | In Māori = O | Кислород | In Macedonian = O | ഓക്സിജന് | In Malayalam = O | Хүчилтөрөгч | In Mongolian = O | ऑक्सिजन | In Marathi = O | Oksigen | In Malay = O | Ehēcayoh | En Nahuatl = O | Suerstoff | In Low German = O | अक्सिजन | In Newari (Nepal Bhasa) = O | Zuurstof | In Dutch = O | Oksygen | In Nynorsk = O | Oksygen | In Norwegian = O | Oxygen | In Oromo = O | Oxygen | In Kapampangan = O | Tlen | In Polish = O | Oxigénio | In Portuguese = O | Muksichaq | In Quechua = O | Oxigen | In Romanian = O | Кислород | In Russian = O | Ossìgginu | In Sicilian = O | Kiseonik | In Serbo-Croatian = O | ඔක්සිජන් | In Sinhalese = O | Kyslík | In Slovak = O | Kisik | In Slovenian = O | Oksigjeni | In Albanian = O | Кисеоник | In Serbian = O | Oksigén | In Sundanese = O | Syre | In Swedish = O | Oksijeni | In Swahili = O | ஆக்ஸிஜன் | In Tamil = O | ఆక్సిజన్ | In Telugu = O | Оксиген | In Tajik = O | ออกซิเจน | In Thai = O | Oksiheno | In Tagalog = O | Oksijen | In Turkish = O | Кисень | In Ukrainian = O | Kislorod | In Uzbek = O | Ôxy | In Vietnamese = O | זויערשטאף | In Yiddisch = O | 氧 | In Chinese |
In Latin | → Chemistry |
| OC | Oriens Christianus | In Latin | |
| OFM | Ordo Fratrum Minorum | In Latin | → Organizations and associations → Christianity |
| OS | Orientalia Suecana | In Latin | |
| OSA | Ordo Sancti Augustini | In Latin | → Organizations and associations → Christianity |
| OSB | Ordo Sancti Benedicti | In Latin | → Organizations and associations → Christianity |
| OT | Ordo Teutonicus | In Latin | → Organizations and associations → Christianity |
| PCP | Poscum Concordia Pulchra | In Latin | |
| PEFPN | Physica Energiae Fortis et Physica Nuclearis | In Latin | → Serial publications, periodicals → Nuclear, atomic, and molecular physics |
| PhD | Philosophiae Doctor = PhD | Philosophical Doctor | In English |
In Latin | → Higher education, universities |
| PhyNr | Physica Norvegica | In Latin | → Serial publications, periodicals → Physics |
| PhyS | Physica Scripta | In Latin | → Serial publications, periodicals → Physics |
| PM | Post meridiem | In Latin | |
| PMHu | Periodica Mathematica Hungarica | In Latin | → Serial publications, periodicals → Mathematics |
| PS | Postscriptum | In Latin | |
| PSS | Physica Status Solidi | In Latin | → Serial publications, periodicals → Physics |
| QED | Quod Erat Demonstrandum = CQFD | Ce Qu'il Fallait Démontrer | In French |
In Latin | → Science and knowledge |
| RP | Retinitis Pigmentosa | In Latin | → Pathology → Ophtalmology |
| RV | Radio Vaticana (www.radiovaticana.org) | In Latin | → Telecommunications |
| SAO | Studia et Acta Orientalia | In Latin | |
| SASn | Studia Astronomica Sinica | In Latin | → Serial publications, periodicals → Astronomy |
| Sc | Scandium = Sc | Scandium | In English = Sc | Skandium | In Afrikaans = Sc | سكانديوم | In Arabic = Sc | Escandiu | In Asturian = Sc | স্ক্যানডিয়াম | In Bengali = Sc | Скандый | In Belarusian = Sc | Skandijum | In Bosnian = Sc | Скандий | In Bulgarian = Sc | Escandi | In Catalan = Sc | Skandium | In Czech = Sc | Scandiu | In Corsican = Sc | Scandium | In Danish = Sc | Scandium | In German = Sc | Skandium | In Estonian = Sc | Σκάνδιο | In Greek = Sc | Escandio | In Spanish = Sc | Skandio | In Esperanto = Sc | Eskandio | In Basque = Sc | اسکاندیم | In Persian = Sc | Scandium | In French = Sc | Scandi | In Friulian = Sc | Scandjum | In Manx = Sc | Escandio | In Galician = Sc | 스칸듐 | In Korean = Sc | Սկանդիում | In Armenian = Sc | स्काण्डियम | In Hindi = Sc | Skandij | In Croatian = Sc | Skandio | In Ido = Sc | Skandium | In Indonesian = Sc | Skandín | In Icelandic = Sc | Scandio | In Italian = Sc | סקנדיום | In Hebrew = Sc | Skandium | JV = Sc | ಸ್ಕ್ಯಾಂಡಿಯಮ್ | In Kannada = Sc | Skandi | In Swahili = Sc | Skandyòm | In Haitian Creole = Sc | Skandiyûm | In Kurdish = Sc | Skandijs | In Latvian = Sc | Scandium | In Letzeburgesh = Sc | Skandis | In Lithuanian = Sc | jinmrskandi | In Lojban = Sc | Szkandium | In Hungarian = Sc | Скандиум | In Macedonian = Sc | സ്കാന്ഡിയം | In Malayalam = Sc | स्कॅन्डियम | In Marathi = Sc | Scandium | In Dutch = Sc | スカンジウム | In Japanese = Sc | Scandium | In Norwegian = Sc | Scandium | In Nynorsk = Sc | Escandi | In Occitan = Sc | Skandiy | In Uzbek = Sc | Skand | In Polish = Sc | Escândio | In Portuguese = Sc | Iskandyu | In Quechua = Sc | Скандий | In Russian = Sc | Scandiu | In Sicilian = Sc | Skandium | In Slovak = Sc | Skandij | In Slovenian = Sc | Скандијум | In Serbian = Sc | Skandij | In Serbo-Croatian = Sc | Skandium | In Finnish = Sc | Skandium | In Swedish = Sc | สแคนเดียม | In Thai = Sc | Scandi | In Vietnamese = Sc | Skandiyum | In Turkish = Sc | Скандій | In Ukrainian = Sc | 钪 | In Chinese |
In Latin | → Chemistry |
| SCDI | Syndromis Comparatis Defectu Immunitatis = AIDS | Acquired Immune Deficiency Syndrome | In English = SIDA | Syndrome d'Immuno-Déficience Acquise | In French = VIGS | Verworwe Immuniteitsgebreksindroom | In Afrikaans = SIDA | Síndrome de Inmuno-Deficiencia Adquirida | In Occitan = SIDA | Sindromo di Imuno-Defekteso Aquirita | In Ido = AIDS | Akirita Imuno-Deficita Simptomaro | In Esperanto = SIDA | Sindrome d'inmunodefizienzia aquirita | In Aragonese = СПИН | Синдром на придобитата имунна недостатъчност | In Bulgarian = QİÇS | Qazanılmış İmmun Çatışmazlığı Sindromu | In Azerbaijani = SIDA | Síndrome d'Immunodeficiència Adquirida | In Catalan = HIES | Hartutako Immuno Eskasiaren Sindromea | In Basque = SIDA | Síndrome de Inmunodeficiencia Adquirida | In Spanish = SEIF | Siondróm Easpa Imdhíonachta Faighte | In Irish = AIDS | Annlochd Inneamh Dìon-Slàinte | In Scottish Gaelic = ՁԻԱՀ | Ձեռքբերովի Իմունային Անբավարվածության Համախտանիշ | In Armenian = 에이즈 | 후천성 면역 결핍 증후군 | In Korean = შიდსი | შეძენილი იმუნური დეფიციტის სინდრომი | In Georgian = СИДА | Синдромот на стекнат имунолошки дефицит | In Macedonian = СИДА | синдром стеченог имунолошког дефицита | In Serbian = AIDS | Akvirírani imúnski deficítni sindróm | In Slovenian = СПИД | Синдром приобретённого иммунного дефицита | In Russian = SIDA | Sindromul Imunodeficienţei Autodobândite | In Romanian = UHCW | Unquy hark'aypa chaskisqa waqlliynin | In Quechua = SIDA | Síndrome da imunodeficiência adquirida | In Portuguese = AIDS | Hội chứng Suy giảm Miễn dịch Mắc phải | In Vietnamese = СНІД | Cиндром набутого імунодефіциту | In Ukrainian = AIDS | Alınğan İmmun Defisit Síndromı | In Tatar = UKIMWI | Upungufu wa Kinga Mwilini | In Swahili |
In Latin | → Immunology and allergy → Infectious diseases |
| SciSn | Scientia Sinica | In Latin | → Serial publications, periodicals → Mathematics and natural sciences |
| ScM | Scripta Metallurgica | In Latin | → Serial publications, periodicals → Metallurgy |
| ScMM | Scripta Metallurgica et Materialia | In Latin | → Serial publications, periodicals → Metallurgy → 620 |
| Se | Selenium = Se | Sélénium | In French = Se | Selenium | In Afrikaans = Se | سيلينيوم | In Arabic = Se | Селен | In Belarusian = Se | Селен | In Bulgarian = Se | সেলেনিয়াম | In Bengali = Se | Selen | In Bosnian = Se | Seleni | In Catalan = Se | Seleniu | In Corsican = Se | Selen | In Czech = Se | Selen | In Danish = Se | Selen | In German = Se | Σελήνιο | In Greek = Se | Selenium | In English = Se | Seleno | In Esperanto = Se | Selenio | In Spanish = Se | Seleen | In Estonian = Se | سلنیوم | In Persian = Se | Seleeni | In Finnish = Se | Seleni | In Friulian = Se | Selenio | In Galician = Se | סלניום | In Hebrew = Se | सेलेनियम | In Hindi = Se | Selenij | In Croatian = Se | Selenyòm | In Haitian Creole = Se | Szelén | In Hungarian = Se | Սելեն | In Armenian = Se | Selenium | In Indonesian = Se | Selenio | In Ido = Se | Selen | In Icelandic = Se | Selenio | In Italian = Se | セレン | In Japanese = Se | lurcmu | In Lojban = Se | 셀레늄 | In Korean = Se | Selen | In Letzeburgesh = Se | Selenas | In Lithuanian = Se | Selēns | In Latvian = Se | Селен | In Macedonian = Se | सेलेनियम | In Marathi = Se | Selen | In Low German = Se | Seleen | In Dutch = Se | Selen | In Nynorsk = Se | Selen | In Norwegian = Se | Selèni | In Occitan = Se | Selen | In Polish = Se | Selênio | In Portuguese = Se | Silinyu | In Quechua = Se | Seleniu | In Romanian = Se | Селен | In Russian = Se | Sileniu | In Sicilian = Se | Selen | In Serbo-Croatian = Se | Selén | In Serbian = Se | Selen | In Slovenian = Se | Селен | In Serbian = Se | Selen | In Swedish = Se | Seleni | In Swahili = Se | செலீனியம் | In Tamil = Se | ซีลีเนียม | In Thai = Se | Selenyum | In Turkish = Se | Селен | In Ukrainian = Se | Selen | In Uzbek = Se | 硒 | In Chinese |
In Latin | → Chemistry |
| SE | Societas Europaea | In Latin | → Economics → European Union |
| SHS | Societas Heraldica Slovenica (www.heraldica.si) | In Latin | → Organizations and associations → 9299 |
| SI | Studia Islamica | In Latin | → Islam |
| SNTS | Studiorum Novi Testamenti Societas | In Latin | → Organizations and associations → Christianity |
| SO | Symbolæ osloenses | In Latin | → Serial publications, periodicals |
| SO | Studia Orientalia | In Latin | → Area studies |
| SPQR | Senatus Populusque Romanus | In Latin | → Politics |
| SRMO | Specula Regia Monachiensi Observationes astronomicae | In Latin | → Serial publications, periodicals → Astronomy |
| SSTor | Studia Societatis Scientiarum Torunensis | In Latin | → Serial publications, periodicals → Mathematics and natural sciences |
| StBio | Studia Biophysica | In Latin | → Serial publications, periodicals → Biochemistry, biophysics |
| StGG | Studia Geophysica et Geodaetica | In Latin | → Serial publications, periodicals → Geophysics → Geodesy, cartography |
| SVB | Societas Vexillologica Belgica | In Latin | → Organizations and associations → 9299 |
| Th | Thorium = Th | Thorium | In English = Th | ثوريوم | In Arabic = Th | থোরিয়াম | In Bengali = Th | Торый | In Belarusian = Th | Torijum | In Bosnian = Th | Торий | In Bulgarian = Th | Tori | In Catalan = Th | Thorium | In Czech = Th | Toriu | In Corsican = Th | Thorium | In Danish = Th | Thorium | In German = Th | Toorium | In Estonian = Th | Θόριο | In Greek = Th | Torio | In Spanish = Th | Torio | In Esperanto = Th | Torio | In Basque = Th | توریوم | In Persian = Th | Thorium | In French = Th | Tori | In Friulian = Th | Thorium | In Manx = Th | Torio | In Galician = Th | 토륨 | In Korean = Th | Թորիում | In Armenian = Th | थोरियम | In Hindi = Th | Torij | In Croatian = Th | Torio | In Ido = Th | Torium | In Indonesian = Th | Thorium | In Interlingua = Th | Torio | In Italian = Th | תוריום | In Hebrew = Th | Toryòm | In Haitian Creole = Th | Torijs | In Latvian = Th | Thorium | In Letzeburgesh = Th | Toris | In Lithuanian = Th | lidycevjinme | In Lojban = Th | Tórium | In Hungarian = Th | തോറിയം | In Malayalam = Th | Thorium | In Dutch = Th | トリウム | In Japanese = Th | Thorium | In Norwegian = Th | Thorium | In Nynorsk = Th | Tor | In Polish = Th | Tório | In Portuguese = Th | Toriu | In Romanian = Th | Thoryu | In Quechua = Th | Торий | In Russian = Th | Toriu | In Sicilian = Th | Tórium | In Slovak = Th | Torij | In Slovenian = Th | Торијум | In Serbian = Th | Torijum | In Serbo-Croatian = Th | Torium | In Finnish = Th | Torium | In Swedish = Th | ทอเรียม | In Thai = Th | Toryum | In Turkish = Th | Торій | In Ukrainian = Th | 钍 | In Chinese |
In Latin | → Chemistry |
| TLL | Thesaurus Linguae Latinae | In Latin | → Encyclopaedias, reference works → Linguistics |
| U | Uranium = U | Uranio | In Esperanto = U | Uranium | In French = U | Uran | In Tosk = U | يورانيوم | In French = U | Uran | In Azerbaijani = U | Уран | In Belarusian = U | Уран | In Bulgarian = U | ইউরেনিয়াম | In Bengali = U | Uranijum | In Bosnian = U | Urani | In Catalan = U | Uraniu | In Corsican = U | Uran | In Czech = U | Uran | In Danish = U | Uran | In German = U | Ουράνιο | In Greek = U | Uranium | In English = U | Uranio | In Spanish = U | Uraan | In Estonian = U | Uranio | In Basque = U | اورانیوم | In Persian = U | Uraani | In Finnish = U | Urani | In Friulian = U | Uranio | In Galician = U | אורניום | In Hebrew = U | Uranij | In Croatian = U | Iranyòm | In Haitian Creole = U | Urán | In Hungarian = U | Ուրան (տարր) | In Armenian = U | Uranium | In Indonesian = U | Uranio | In Ido = U | Úran | In Icelandic = U | Uranio | In Italian = U | ウラン | In Japanese = U | jinmrvurani | In Lojban = U | ಯುರೇನಿಯಮ್ | In Kannada = U | 우라늄 | In Korean = U | Uran | In Letzeburgesh = U | Uranas | In Lithuanian = U | Urāns | In Latvian = U | യുറേനിയം | In Malayalam = U | Ilhuicateōtepoztli | En Nahuatl = U | Uran | In Low German = U | Uranium | In Dutch = U | Uran | In Nynorsk = U | Uran | In Norwegian = U | Uran | In Polish = U | Urânio | In Portuguese = U | Uranyu | In Quechua = U | Uraniu | In Romanian = U | Уран | In Russian = U | यूरानियम | In Sanskrit = U | Uraniu | In Sicilian = U | Uranijum | In Serbo-Croatian = U | Urán | In Slovak = U | Uran | In Slovenian = U | Urani | In Albanian = U | Уранијум | In Serbian = U | Uran | In Swedish = U | Urani | In Swahili = U | யுரேனியம் | In Tamil = U | ยูเรเนียม | In Thai = U | Uranyo | In Tagalog = U | Uranyum | In Turkish = U | Уран | In Ukrainian = U | Urani | In Vietnamese = U | 鈾 | In Chinese |
In Latin | → Chemistry |
| UCAFR | Universitas Comeniana Acta Facultatis Rerum Naturalium Physica | In Latin | → Serial publications, periodicals → Physics |
| UD | Utile Dulci | In Latin | → Organizations and associations → Sport, physical exercises |
| UGC | Nova Acta Regiae Societatis Scientiarum Upsaliensis | In Latin | → Serial publications, periodicals → Mathematics and natural sciences |
| URSS | Unio Rerum Publicarum Socialisticarum Sovieticarum = URSS | Unaniezh ar Republikoù Sokialour Soviedel | In Breton = URSS | Union des Républiques Socialistes Soviétiques | In French = USSR | Unie van Sosialistiese Sowjetrepublieke | In Afrikaans = USSR | Union of Soviet Socialist Republics | In English = СССР | Сою́з Сове́тских Социалисти́ческих Респу́блик | In Russian = CCCP | Съюзът на съветските социалистически републики | In Bulgarian = SSSR | Soyuz Sovetskikh Sotsialisticheskikh Respublik | In Russian = URSS | Unión de Republicas Sozialistas Sobieticas | In Aragonese = XRSS | Xunión de les Repúbliques Socialistes Soviétiques | In Asturian = SSRİ | Sovet Sosialist Respublikaları İttifaqı | In Azerbaijani = TSRS | Tarybu Socialistiniu Respubliku Sajunga | In Baltic languages = SSSR | Savez Sovjetskih Socijalističkih Republika | In Serbo-Croatian = URSS | Unió de Repúbliques Socialistes Soviètiques | In Catalan = SSSR | Svaz sovětských socialistických republik | In Czech = USSR | Unio de Sovetaj Socialismaj Respublikoj | In Esperanto = CCCP | Социаллă Совет Республикисен Союзĕ | In Chuvash = USSR | Unionen af Socialistiske Sovjetrepublikker | In Danish = URSS | Unione delle Repubbliche Socialiste Sovietiche | In Italian = ZSRR | Związek Socjalistycznych Republik Radzieckich | In Polish = SSKS | Szovjet Szocialista Köztársaságok Szövetsége | In Hungarian = UdSSR | Union der Sozialistischen Sowjetrepubliken | In German = ΕΣΣΔ | Ένωση Σοβιετικών Σοσιαλιστικών Δημοκρατιών | In Greek = URSS | Unión de Repúblicas Socialistas Soviéticas | In Spanish = NSVL | Nõukogude Sotsialistlike Vabariikide Liit | In Estonian = SESB | Sobietar Errepublika Sozialisten Batasuna | In Basque = USSR | Uny fan Sosjalistyske Sowjetrepublyken | In Frisian = ԽՍՀՄ | Խորհրդային Սոցիալիստական Հանրապետությունների Միություն | In Armenian = URSS | Unión das Repúblicas Socialistas Soviéticas | In Galician = სსრკ | საბჭოთა სოციალისტური რესპუბლიკების კავშირი | In Georgian = CCPC | Советтик Социалисттик Республикалар Союзу | In Kirghiz = UdSSR | Unioun vun de Sozialistesche Sowjetrepubliken | In Letzeburgesh = PSRS | Padomju Sociālistisko Republiku Savienība | In Latvian = СССР | Сојуз на Советските Социјалистички Републики | In Macedonian = УРСС | Униуня Републичилор советиче Сочиалисте | In Moldavan = KRSS | Kesatuan Republik Sosialis Soviet | In Malay = USSR | Unie van Socialistische Sovjetrepublieken | In Dutch = SSSR | Sambandet av Sosialistiske Sovjet-Republikkar | In Nynorsk = SSSR | Samveldet av sovjetiske sosialistrepublikker | In Norwegian = URSS | Unnion d'Républyiques Socialistes Soviétiques | In Norman = URSS | União das Repúblicas Socialistas Soviéticas | In Portuguese = URSS | Union de las Republicas Socialistas Sovieticas | In Occitan = SSRH | Susyalista Suwit Republikakunap Huñun | In Quechua = ССРЦ | Советон Социалистон Республикæты Цæдис | In Ossetian = URSS | Uniunea Republicilor Sovietice Socialiste | In Romanian = URSS | Unioni dî ripùbblichi sucialisti suviètichi | In Sicilian = ZSSR | Zveza sovjetskih socialističnih republik | In Slovenian = СССР | Савез Совјетских Социјалистичких Република | In Serbian = SSCB | Sovyet Sosyalist Cumhuriyetler Birliği | In Turkish = СРСР | Союз Радянських Соціалістичних Республік | In Ukrainian = SSRB | Sovet Sosialistik Republiklar Berlege | In Tatar = SSRI | Sovet Sotsialistik Respublikalar Ittifoqi | In Uzbek |
In Latin | → International relations → Geography |
| VIDH | Virus Immunitarii Defectus Humanae = VIH | Virus de l'Immunodéficience Humaine | In French = HIV | Human Immunodeficiency Virus | In English = VIH | Virus d'Inmunodeficencia Humana | In Asturian = VIH | Vírus da imunodeficiência humana | In Portuguese = ŽIV | Žmogaus Imunodeficito Virusas | In Lithuanian = ХИВ | Хумане имунодефицијенције | In Serbian = MIV | Menslike Immuniteitsgebreksvirus | In Afrikaans = HIV | Humani Imunodeficientni Virus | In Slovenian = ВИЧ | Вирус иммунодефицита человека | In Russian = GIB | Giza Immunoeskasiaren Birusa | In Basque |
In Latin | → Virology → Immunology and allergy → Infectious diseases |
| VT | Vetus Testamentum | In Latin | → Christianity |