| transmutacja | transmutation |
| TRANSNET - Gewerkschaft der Eisenbahner Deutschlands | TRANSNET Gewerkschaft |
| Transnistria | Transnistria |
| Transparency International | Transparency International |
| transpiracja | transpiration |
| transport | transport |
| Transport aktywny | Active transport |
| transport dalekobieżny | long-distance transport |
| transport kolejowy | rail transport |
| transport kombinowany | combined transport |
| transport lotniczy | air transportation |
| transport lądowy | land transportation |
| transport materiałów niebezpiecznych | dangerous materials transport |
| transport morski | maritime transport |
| transport pasażerski | passenger transport |
| transport prywatny | private transport |
| transport publiczny | public transport |
| Transport rurociągowy | Pipeline transport |
| Transport w Kamerunie | Transport in Cameroon |
| transport wodny | merchant shipping |
| transport ładunku | freight transport |
| transport żywności | food transport |
| transporter opancerzony | armoured personnel carrier |
| Transputer | INMOS transputer |
| transseksualista | transsexual |
| Transseksualizm | Transsexualism |
| transseksualny | transsexual |
| transsubstancjacja | transubstantiation |
| transteizm | transtheism |
| Transvaal Paramaribo | SV Transvaal |
| Transwal | Transvaal |
| Transylwania | Transylvania |
| Transylwania saksońska | Transylvanian Saxons |
| tranzelka | bridle |
| tranzystor | transistor |
| Tranzystor bipolarny | Bipolar junction transistor |
| tranzystor polowy | field-effect transistor |
| Tranzystor polowy złączowy | JFET |
| Tranzyt | Astronomical transit |
| Tranøy | Tranøy |
