| Acronym | Sense | Language | Topics |
|---|---|---|---|
| RAS | Remote Access Set | In English | |
| RAS | Requirements Accounting System | In English | → Accounting |
| RAS | Requirements Allocation Sheet | In English | |
| RAS | Reuse All Systems | In English | |
| RAS | Rijks Ambtenaren Sportclub | In Dutch | → Organizations and associations → Sport, physical exercises |
| RAS | Remontée Aéro-Souterraine | In French | → 6209 → Electrical engineering |
| RAS-HKB | Royal Asiatic Society - Hong Kong Branch | In English | |
| RAS-KB | Royal Asiatic Society - Korea Branch | In English | |
| RAS-SL | Royal Asiatic Society of Sri Lanka | In English | |
| RaSc | Radio Science | In English | → Serial publications, periodicals → Telecommunications |
| RaScB | Radio Science Bulletin | In English | → Serial publications, periodicals → Telecommunications |
| RaScS | Radio Science Supplement | In English | → Serial publications, periodicals → Telecommunications |
| RASED | Réseau d'Aides Spécialisées aux Élèves en Difficulté scolaire | In French | → Education |
| RASIT | Radar de Surveillance des Intervalles | In French | |
| RASM | Remote Analog Submultiplexer | In English | → Electrical engineering |
| RASMUS | Remote Accessible Software configurable Multi-channel Ultrasound Sampling system | In English | → Software → Diagnostics |
| RASRO | Rescue At Sea Resettlement Offer | In English | → Migrations |
| RASTI | Rapid Speech Transmission Index | In English | → Acoustical engineering |
| RATCC | Radar Air Traffic Control Center | In English | → Aeronautics, aircraft |
| RATO | Rocket-Assisted Takeoff | In English | → Astronautics |
| RATP | Régie Autonome des Transports Parisiens (www.ratp.fr) | In French | → Transport and postal services → France |
| RATP | Réseau pour l'Abolition des Transports Payants | In French | → Organizations and associations → Transport and postal services |
| RATS | Regional Antiterrorism Structure | In English | → Social sciences |
| RAU | Red Académica Uruguaya | In Spanish | → Computer science → Higher education, universities → Telecommunications |
| RAU | Remote Access Unit | In English | |
| RAU | Remote Acquisition Unit | In English | |
| RAUIS | Remote Acquisition Unit Interconnecting Station | In English | |
| RAV | Reste À Ventiler | In French | → Accounting |
| RAVE | Rotax Adjustable Variable Exhaust | In English | |
| RAVeL | Réseau Autonome des Voies Lentes | In French | → Transport and postal services |
| RAVIOLI | RAdar Vision Orienté LIdar | In French | |
| RAWA | Revolutionary Association of the Women of Afghanistan = راوا | جمعیت انقلابی زنان افغانستان | In Persian |
In English | → Associations → Feminism |
| RAWS | Role-Adaptable Weapons System | In English | → Military engineering |
| RAX | Remote Access Computing System | In English | → Computer hardware |
| RAX | Remote Access Terminal | In English | → Human-computer interaction |
| RAY | République Arabe du Yémen = JAR | Jemenitische Arabische Republik | In German = YAR | Yemen Arab Republic | In German = JAR | Jemenitische Arabische Republiek | In Dutch = RAI | República Árabe do Iémen | In Portuguese |
In French | → Geography |
| RAZEL | Range, Azimuth, and Elevation | In English | → Astronomy |
| RB | Revue Biblique | In French | → Serial publications, periodicals → Religion, theology |
| RB | Radar Beacon | In English | |
| RB | Rubber Base | In English | |
| Rb | Rubidium = Rb | Rubidium | In Afrikaans = Rb | روبيديوم | In Arabic = Rb | Рубідый | In Belarusian = Rb | Рубидий | In Bulgarian = Rb | রুবিডিয়াম | In Bengali = Rb | Rubidijum | In Bosnian = Rb | Rubidi | In Catalan = Rb | Rubidiu | In Corsican = Rb | Rubidium | In Czech = Rb | Rwbidiwm | In Welsh = Rb | Rubidium | In Danish = Rb | Rubidium | In German = Rb | Ρουβίδιο | In Greek = Rb | Rubidium | In English = Rb | Rubidio | In Esperanto = Rb | Rubidio | In Spanish = Rb | Rubiidium | In Estonian = Rb | Rubidio | In Basque = Rb | روبیدیوم | In Persian = Rb | Rubidium | In Finnish = Rb | Rubidi | In Friulian = Rb | Rúbaidiam | In Irish = Rb | Rubidio | In Galician = Rb | Rubiddjum | In Manx = Rb | רובידיום | In Hebrew = Rb | रुबिडियम | In Hindi = Rb | Rubidij | In Croatian = Rb | Rubídium | In Hungarian = Rb | Ռուբիդիում | In Armenian = Rb | Rubidium | In Indonesian = Rb | Rubidio | In Ido = Rb | Rúbidín | In Icelandic = Rb | Rubidio | In Italian = Rb | ルビジウム | In Japanese = Rb | xunsodna | In Lojban = Rb | Rubidium | JV = Rb | ರುಬಿಡಿಯಮ್ | In Kannada = Rb | 루비듐 | In Korean = Rb | Rûbîdyûm | In Kurdish = Rb | Rubidium | In Latin = Rb | Rubidium | In Letzeburgesh = Rb | Rubidis | In Lithuanian = Rb | Rubīdijs | In Latvian = Rb | റൂബിഡിയം | In Malayalam = Rb | Rubidium | In Dutch = Rb | Rubidium | In Nynorsk = Rb | Rubidium | In Norwegian = Rb | Rubidi | In Occitan = Rb | Rubid | In Polish = Rb | Rubídio | In Portuguese = Rb | Rubidyu | In Quechua = Rb | Rubidiu | In Romanian = Rb | Рубидий | In Russian = Rb | Rubidiu | In Sicilian = Rb | Rubidijum | In Serbo-Croatian = Rb | Rubídium | In Slovak = Rb | Rubidij | In Slovenian = Rb | Рубидијум | In Serbian = Rb | Rubidium | In Swedish = Rb | Rubidi | In Swahili = Rb | ருபீடியம் | In Tamil = Rb | รูบิเดียม | In Thai = Rb | Rubidyum | In Turkish = Rb | Рубідій | In Ukrainian = Rb | Rubidiy | In Uzbek = Rb | Rubidi | In Vietnamese = Rb | Rubidiom | In Walloon = Rb | 铷 | In Chinese |
In French | → Chemistry |
| Rb | Rubidium = (look above) |
In Afrikaans | → Chemistry |
| Rb | روبيديوم = (look above) |
In Arabic | → Chemistry |
| Rb | Рубідый = (look above) |
In Belarusian | → Chemistry |
| Rb | Рубидий = (look above) |
In Bulgarian | → Chemistry |
| Rb | রুবিডিয়াম = (look above) |
In Bengali | → Chemistry |
| Rb | Rubidijum = (look above) |
In Bosnian | → Chemistry |
| Rb | Rubidi = (look above) |
In Catalan | → Chemistry |
| Rb | Rubidiu = (look above) |
In Corsican | → Chemistry |
| Rb | Rubidium = (look above) |
In Czech | → Chemistry |
| Rb | Rwbidiwm = (look above) |
In Welsh | → Chemistry |
| Rb | Rubidium = (look above) |
In Danish | → Chemistry |
| Rb | Rubidium = (look above) |
In German | → Chemistry |
| Rb | Ρουβίδιο = (look above) |
In Greek | → Chemistry |
| Rb | Rubidium = (look above) |
In English | → Chemistry |
| Rb | Rubidio = (look above) |
In Esperanto | → Chemistry |
| Rb | Rubidio = (look above) |
In Spanish | → Chemistry |
| Rb | Rubiidium = (look above) |
In Estonian | → Chemistry |
| Rb | Rubidio = (look above) |
In Basque | → Chemistry |
| Rb | روبیدیوم = (look above) |
In Persian | → Chemistry |
| Rb | Rubidium = (look above) |
In Finnish | → Chemistry |
| Rb | Rubidi = (look above) |
In Friulian | → Chemistry |
| Rb | Rúbaidiam = (look above) |
In Irish | → Chemistry |
| Rb | Rubidio = (look above) |
In Galician | → Chemistry |
| Rb | Rubiddjum = (look above) |
In Manx | → Chemistry |
| Rb | רובידיום = (look above) |
In Hebrew | → Chemistry |
| Rb | रुबिडियम = (look above) |
In Hindi | → Chemistry |
| Rb | Rubidij = (look above) |
In Croatian | → Chemistry |
| Rb | Rubídium = (look above) |
In Hungarian | → Chemistry |
| Rb | Ռուբիդիում = (look above) |
In Armenian | → Chemistry |
| Rb | Rubidium = (look above) |
In Indonesian | → Chemistry |
| Rb | Rubidio = (look above) |
In Ido | → Chemistry |
| Rb | Rúbidín = (look above) |
In Icelandic | → Chemistry |
| Rb | Rubidio = (look above) |
In Italian | → Chemistry |
| Rb | ルビジウム = (look above) |
In Japanese | → Chemistry |
| Rb | xunsodna = (look above) |
In Lojban | → Chemistry |
| Rb | Rubidium = (look above) |
[JV] | → Chemistry |
| Rb | ರುಬಿಡಿಯಮ್ = (look above) |
In Kannada | → Chemistry |
| Rb | 루비듐 = (look above) |
In Korean | → Chemistry |
| Rb | Rûbîdyûm = (look above) |
In Kurdish | → Chemistry |
| Rb | Rubidium = (look above) |
In Latin | → Chemistry |
| Rb | Rubidium = (look above) |
In Letzeburgesh | → Chemistry |
| Rb | Rubidis = (look above) |
In Lithuanian | → Chemistry |
| Rb | Rubīdijs = (look above) |
In Latvian | → Chemistry |
| Rb | റൂബിഡിയം = (look above) |
In Malayalam | → Chemistry |
| Rb | Rubidium = (look above) |
In Dutch | → Chemistry |
| Rb | Rubidium = (look above) |
In Nynorsk | → Chemistry |
| Rb | Rubidium = (look above) |
In Norwegian | → Chemistry |
| Rb | Rubidi = (look above) |
In Occitan | → Chemistry |
| Rb | Rubid = (look above) |
In Polish | → Chemistry |
| Rb | Rubídio = (look above) |
In Portuguese | → Chemistry |
| Rb | Rubidyu = (look above) |
In Quechua | → Chemistry |
| Rb | Rubidiu = (look above) |
In Romanian | → Chemistry |
| Rb | Рубидий = (look above) |
In Russian | → Chemistry |
| Rb | Rubidiu = (look above) |
In Sicilian | → Chemistry |
| Rb | Rubidijum = (look above) |
In Serbo-Croatian | → Chemistry |
| Rb | Rubídium = (look above) |
In Slovak | → Chemistry |
| Rb | Rubidij = (look above) |
In Slovenian | → Chemistry |
| Rb | Рубидијум = (look above) |
In Serbian | → Chemistry |
| Rb | Rubidium = (look above) |
In Swedish | → Chemistry |
| Rb | Rubidi = (look above) |
In Swahili | → Chemistry |
| Rb | ருபீடியம் = (look above) |
In Tamil | → Chemistry |
| Rb | รูบิเดียม = (look above) |
In Thai | → Chemistry |
| Rb | Rubidyum = (look above) |
In Turkish | → Chemistry |
| Rb | Рубідій = (look above) |
In Ukrainian | → Chemistry |
| Rb | Rubidiy = (look above) |
In Uzbek | → Chemistry |
| Rb | Rubidi = (look above) |
In Vietnamese | → Chemistry |
| Rb | Rubidiom = (look above) |
In Walloon | → Chemistry |
| Rb | 铷 = (look above) |
In Chinese | → Chemistry |
| RB | Rapprochement Bancaire | In French | → Banks |
| RBA | Radar Beacon Antenna | In English | |
| RBA | Recovery Beacon Antenna | In English | |
| RBB | Rundfunk Berlin-Brandenburg | In German | → Telecommunications |
| RBC | Red Blood Cells | In English | → Blood and circulatory system |
| RBC | Rotating Beam Ceilometer | In English | |
| RBC | Roosendaalse Boys Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| RBDE | Radar Bright Display Equipment | In English | |
| RBE | Radiation Biological Effectiveness | In English | → Biological sciences |
| RBE | Relative Biological Effectiveness | In English | → Pharmacology, toxicology → Nuclear technology |
| RBF | Regional Blood Flow | In English | → Blood and circulatory system |
| RBMT | Retrospective Bibliographies on Magnetic Tape | In English | → Libraries |
| RBN | Radio Beacon | In English | |
| RBrFi | Revista Brasileira de Física | In Portuguese | → Serial publications, periodicals → Physics → Brazil |
| RBS | Radar Bomb Scoring | In English | → Military engineering |
| RC | Radio Command | In English | |
| RC | Reverse Current | In English | |
| RC | Rotation(al) Control | In English | |
| RC | Radio Control | In English | |
| RC | Range Command | In English | |
| RC | Rate Command | In English | |
| RC | Reaction Control | In English | |
| RC | Recovery Controller | In English | |
| RC | Recurring Cost | In English | → Prices |
| RC | Reinforced Concrete | In English | → Construction |
| RC | Resistance-Capacitance | In English | → Electrical engineering |
| RC | Ricerca e Cooperazione | In Italian | → Organizations and associations → Research policy → International relations |
| RC | Reading Center | In English | |
| RC | Reserve Component | In English | |
| RC | Repos Compensateur | In French | → Personnel management → Labour, labour economics |
| RC | Rémunération Complémentaire | In French | → Personnel management → Labour, labour economics |
| RC | Responsabilité Civile | In French | → Insurance |
| RC | Revenu Cadastral | In French | → Taxes, duties |
| RC&VV | Rotterdamsche Cricket en Voetbal Vereniging | In Dutch | → Organizations and associations → Sport, physical exercises → Football and rugby → Netherlands |
| RCA | Radio Corporation of America | In English | → Telecommunications → United States |
| RCA | Remote Control Amplifier | In English | |
| RCA | Rugby Club Auxerrois | In French | → Organizations and associations → Football and rugby |
| RCA | Racing Club Amsterdam | In Dutch | → Organizations and associations → Sport, physical exercises → Netherlands |
| RCA | Responsabilité Civile Accident | In French | → Insurance → Accidents, risks, safety |
| RCAC | Racing Club Animo Combinatie | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCACP | Rugby Club Agglomération Cergy Pontoise | In French | → Organizations and associations → Football and rugby |
| RCAG | Remote Center Air-Ground | In English | |
| RCAI | Résultat Courant avant Impôt | In French | → Accounting → Taxes, duties |
| RCAP | Royal Commission on Aboriginal Peoples = CRPA | Commission Royale sur les Peuples Autochtones | In French |
In English | → Politics |
| RCAV | Rugby Club Aubenas Vals | In French | → Organizations and associations → Football and rugby |
| RCB | Réseau Complémentaire de Bassin | In French | → Hydrology |
| RCB | Remote Circuit Breaker | In English | → Electrical engineering |
| RCC | Reinforced Carbon-Carbon | In English | |
| RCC | Range Commanders' Council | In English | |
| RCC | Range Control Center | In English | |
| RCC | Recovery Control Center | In English | |
| RCC | Redundancy Connection Control | In English | |
| RCC | Regional Control Center | In English | |
| RCC | Reusable Carbon-Carbon | In English | |
| RCC | Rough Combustion Cutoff | In English | → Vehicle engineering |
| RCC | Rugby Club Châteaurenard | In French | → Organizations and associations → Football and rugby |
| RCC | Recurrent Cascade Correlation | In English | |
| RCC-C | Règles de Conception et de Construction des Assemblages de Combustible des Centrales Nucléaires | In French | → Nuclear technology |
| RCC-E | Règles de Conception et de Construction des Matériels Électriques des Centrales Nucléaires | In French | → Nuclear technology |
| RCC-G | Règles de Conception et de Construction du Génie Civil des Îlots Nucléaires REP | In French | → Nuclear technology |
| RCC-M | Règles de Conception et de Construction des Matériels Mécaniques des Îlots Nucléaires REP | In French | → Nuclear technology |
| RCC-MR | Règles de Conception et de Construction des Matériels Mécaniques des Îlots Nucléaires RNR | In French | → Nuclear technology |
| RCCA | Rough Combustion Cutoff Assembly | In English | → Vehicle engineering |
| RCCB | Remote Central Circuit Breaker | In English | → Electrical engineering |
| RCCB | Rockwell Configuration Control Board | In English | |
| RCCP | Recorder and Communications Control Panel | In English | → Telecommunications |
| RCD | Regional Cooperation for Development | In English | → Development |
| RCD | Rugby Club Dijonnais | In French | → Organizations and associations → Football and rugby |
| RCD | Réacteur Complétement Déchargé | In French | → Nuclear technology |
| RCD | Racing Club Dordrecht | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCDA | Ring Christlich-Demokratischer Akademiker | In German | → Organizations and associations → Christian-democratic parties |
| RCDD | Registered Communications Distribution Designer | In English | → Telecommunications |
| RCDÉC | Réseau Canadien de Développement Économique Communautaire (www.ccednet-rcdec.ca) | In French | → Organizations and associations → Economics |
| RCDS | Ring Christlich-Demokratischer Studenten (www.rcds.de) | In German | → Christian-democratic parties → Higher education, universities → Germany |
| RCEA | Revue Canadienne des Études Africaines | In French | → Serial publications, periodicals → Area studies → Canada |
| RCF | Rassemblement des Contribuables Français | In French | → Political parties and movements → France |
| RCF | Radios Chrétiennes en France | In French | → Organizations and associations → Telecommunications → Christianity → France |
| RCFI | Rugby Club de Flandre Intérieure | In French | → Organizations and associations → Football and rugby |
| RCGC | Rugby Club Grand-Couronnais | In French | → Organizations and associations → Football and rugby |
| RCGM | Rugby Club Grande Motte | In French | → Organizations and associations → Football and rugby |
| RCH | Racing Club Haarlem | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCH | Racing Club Heemstede | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCI | Request for Contract Investigation | In English | |
| RCJ | Congregation of the Rogationists of the Sacred Heart of Jesus | In English | → Roman catholic church |
| RCL | Reliability Control Level | In English | → Quality management |
| RCL | Racing Club Leiderdorp | In Dutch | → Organizations and associations → Sport, physical exercises |
| RCM | Reliability-Centered Maintenance | In English | → Quality management → Maintenance and logistics |
| RCM | Rugby Club de Montréal | In French | → Organizations and associations → Football and rugby |
| RCM | Reciprocating Chemical Muscle | In English | → Mechanical engineering → Chemical technology |
| RCM | Reliability Centred Maintenance | In English | → Maintenance and logistics |
| RCMD | Rugby Club Municipal Déolois | In French | → Organizations and associations → Football and rugby |