| Triathlon | triathlon |
| Triathlet | triathlete |
| Biathlon | biathlon |
| Triathletin | triathlete |
| Triptoton | triptote |
| Triton | Triton |
| Trikolon | tricolon |
| Trialis | trial |
| Tricho | trichotillomania |
| Trilog | trialogue |
| Trinkhorn | drinking horn |
| Trippeln | patter |
| trippeln | trip |
| Tristan | Tristan |
| Trial | trial |
| Trillion | quintillion |
| Triphthong | triphthong |
| Triptychon | triptych |
| trielen | dribble drivel slaver |
| Variation | variation |