| Triakistetraeder | triakis tetrahedron |
| Trickbetrüger | con artist |
| Hexakisoktaeder | disdyakis dodecahedron |
| Trinitarier | Trinitarian |
| triagieren | triage |
| Pakistaner | Pakistani |
| Preisträger | awardee honoree |
| Transistorradio | transistor radio |
| Kostenträger | cost object |
| Tetraeder | tetrahedron |
| Transferase | transferase |
| transgender | transgender |
| Transgender | trans person trans-person transgender transperson |
| Kaiseradler | imperial eagle |
| Wasserader | underground watercourse |
| Trichterrand | flare |
| Trickbetrug | con game |
| Trickbetrügerin | con artist |
| Trickzeichner | cartoonist |
| Trilliarde | sextillion |