| Triticale | triticale |
| trivial | trivial |
| Initiale | initial |
| Triade | triad |
| Tribeca | Tribeca |
| Triefnase | runny nose |
| Trifle | trifle |
| Trivia | trivia |
| trigonal | trigonal |
| Triage | triage |
| Trial | trial |
| Tribunal | tribunal forum |
| Tridecan | tridecane |
| Trinität | Trinity |
| Trinkhalm | drinking straw drinking tube |
| Triole | triplet |
| Tripitaka | Tripitaka |
| Triskele | triskele |
| Tritium | tritium |
| tribal | tribal |