

| Acronym | Sense | Language | Topics | 
|---|---|---|---|
| ТНО | Транснепту́новый объе́кт = TNO | Trans-Neptunian Object | In English = OTN | Objet Transneptunien | In French = TNO | Transneptunisches Objekt | In German = TNO | Transneptuna Objekto | In Esperanto = TNO | Transneptunsk Objekt | In Norwegian = NÖC | Neptün Ötesi Cisim | In Turkish | In Russian | → Interplanetary medium | 
| ТНТ | Тринитротоулен = TNT | Trinitrotoluol | In German = TNT | Trinitrotoluè | In Catalan = TNT | Trinitrotoluen | In Czech = TNT | Trinitrotoluene | In English = TNT | Trinitrotolueno | In Esperanto = TNT | Trinitrotolueno | In Spanish = TNT | Trinitrotoluenori | In Basque = TNT | ترینیتروتولوئن | In Persian = TNT | Trinitrotoluène | In French = TNT | Trinitrotoluene | In Italian = TNT | Trinitrotoluolas | In Lithuanian = TNT | Trinitrotolueen | In Dutch = TNT | Trinitrotoluen | In Nynorsk = TNT | Trinitrotoluen | In Norwegian = TNT | Trinitrotolueno | In Portuguese = TNT | Trinitrotoluen | In Romanian = TNT | Тринитротолуол | In Russian = TNT | Trinitrotoluen | In Slovenian = TNT | ทีเอ็นที | In Thai = TNT | Trinitrotoluen | In Turkish = ТНТ | Тринітротолуол | In Ukrainian | In Serbian | → Chemicals → Military engineering | 
| ТНТ | Тринітротолуол = TNT (look above) | In Ukrainian | → Chemicals → Military engineering | 
| ТСОП | елефонная сеть общего пользования = PSTN | Public Switched Telephone Network | In English = RTCP | Réseau Téléphonique Commuté Public | In French | In Russian | → Telecommunications |