| Theophilus | Theophilus |
| Theophanie | theophany |
| thermophil | thermophile thermophilic |
| Neophilie | neophilia |
| oreophil | oreophilous |
| Theosophie | theosophy |
| Thetis | Thetis |
| theosophisch | theosophic |
| Theismus | theism |
| Theiß | Tisza |
| Theodizee | theodicy |
| Theodolit | theodolite |
| Theorie | theory |
| Thesaurus | thesaurus |
| Timotheus | Timothy |
| Cheops | Cheops |
| Eophyll | eophyll |
| Anopheles | anopheles |
| Aphophis | Apophis |
| Apophis | Apophis |