| triangulation | triangulation |
| Triangulation de Delaunay | Delaunay triangulation |
| Triarii | Triarii |
| Triarticulation sociale | Social Threefolding |
| Trias | Triassic |
| triathlon | triathlon |
| Triathlon aux jeux Olympiques | Triathlon at the Summer Olympics |
| Triatoma protracta | Triatoma protracta |
| tribadisme | tribadism |
| tribal | tribal |
| tribalisme | tribalism |
| TribalWars | Tribal Wars |
| Tribble | Tribble |
| Triberg im Schwarzwald | Triberg im Schwarzwald |
| Tribhuvan Shah | Tribhuvan of Nepal |
| tribologie | tribology |
| tribomètre | tribometer |
| Tribonien | Tribonian |
| tribord | starboard |
| triboélectricité | triboelectricity |
| tribraque | tribrach |
| Tribsees | Tribsees |
| tribu | tribe |
| Tribu borélienne | Borel algebra |
| Tribu de Benjamin | Tribe of Benjamin |
| Tribu de Dan | Tribe of Dan |
| Tribu de Gad | Tribe of Gad |
| Tribu de Joseph | Tribe of Joseph |
| Tribu de Juda | Tribe of Judah |
| Tribu de Lévi | Levite |
| Tribu de Manassé | Tribe of Manasseh |
| Tribu de Nephthali | Tribe of Naphtali |
| Tribu de Ruben | Tribe of Reuben |
| Tribu de Siméon | Tribe of Simeon |
| tribulation | tribulation |
| tribulations | trials and tribulations |
| tribule terrestre | caltrop |
| Tribun militaire | Military tribune |
| Tribun militaire à pouvoir consulaire | Tribuni militum consulari potestate |
| tribunal | bench |
| Tribunal administratif fédéral | Federal Administrative Court of Germany |
| Tribunal arbitral du sport | Court of Arbitration for Sport |
| Tribunal constitutionnel fédéral | Federal Constitutional Court of Germany |
| tribunal d'instance | small-claims court |
| tribunal de police | police court |
| Tribunal de première instance des Communautés européennes | Court of First Instance |
| Tribunal de Waitangi | Waitangi Tribunal |
| Tribunal fédéral | Federal Supreme Court of Switzerland |
| Tribunal international du droit de la mer | International Tribunal for the Law of the Sea |
| Tribunal militaire international de Dachau | Dachau Trials |
| Tribunal pénal fédéral | Federal Criminal Court of Switzerland |
| Tribunal pénal international pour le Rwanda | International Criminal Tribunal for Rwanda |
| Tribunal révolutionnaire | Revolutionary Tribunal |
| Tribunal spécial irakien | Supreme Iraqi Criminal Tribunal |
| Tribunal spécial pour la Sierra Leone | Special Court for Sierra Leone |
| Tribunal suprême | Supreme Court of Spain |
| Tribunal suprême de la Signature apostolique | Apostolic Signatura |
| Tribunal Vivant | Living Tribunal |
| Tribunal Waitangi | Waitangi Tribunal |
