| Tranekær | Tranekær Kommune |
| Tranekær municipality | Tranekær Kommune |
| Trang | Trang |
| Trang Province | Trang |
| tranquil | stille |
| Trans fat | Transfedtsyre |
| Trans-Asian Railway | Transasiatisk jernbane |
| Trans-Europe Express | Trans Europa Express |
| Trans-Mexican Volcanic Belt | Sierra Nevada |
| Trans-Neptunian object | Trans-neptunske objekter |
| Trans-Saharan trade | Trans-Sahara-handelen |
| Trans-Siberian Highway | Amur |
| Trans-Siberian Railway | Den transsibiriske jernbane |
| transaction | forretning |
| Transcendental number | Transcendente tal |
| transclusion | transklusion |
| Transcription of Australian Aboriginal languages | Transskription af oprindelige australske sprog |
| Transexuality | Transseksualitet |
| transfer | transport |
| Transfi | Kors |
| Transformer | Transformator |
| transgress | synde |
| Transistor | Transistor |
| transition element | dele af overgangsstrækning |
| transition metal | dele af overgangsstrækning |
| Transitional fossil | Overgangsform |
| Transitional Islamic State of Afghanistan | Afghanistan |
| translate | oversætte |
| translation | oversættelse |
| translation dictionary | oversættelsesordbog |
| translator | oversætter |
| transliteration | translitteration |
| transmissible spongiform encephalopathy | overførbare svampeagtige hjernesygdomme |
| Transmission Control Protocol | TCP |
| transmit | sende |
| Transnistria | Transnistrien |
| Transoxiana | Transoxanien |
| transparant | gennemsigtig |
| Transparency International | Transparency International |
| transparent | klar |
| transpiration | transpiration |
| transport | transport |
