| telefonisch | telephonic |
| Telefonist | telephone operator |
| Telefonbuch | phone book telephone directory telephone book directory white pages |
| Telefonistin | telephone operator |
| Telefonsex | phone sex |
| Telefonie | telephony |
| teleologisch | teleological |
| eufonisch | euphonic |
| hegemonisch | hegemonic |
| tektonisch | tectonic |
| teutonisch | teutonic |
| Telugisch | Telugu |
| Telefon | telephone phone |
| Telefonat | telephone call telephone conversation |
| Telefonmast | utility pole |
| Tellerfleisch | boiled beef |
| telefonieren | telephone |
| telegrafisch | telegraphic |
| telepathisch | telepathic |
| tellurisch | tellurian |