| t. | tense |
| Taxon. | taxonomy, taxonomic |
| techn. | technical |
| Techn. | technical |
| Technol. | technology, technological |
| Tel. | telegraph |
| Telecomm. | telecommunications |
| Telegr. | telegraph |
| Telegr. | telegraphy, telegraphic(al) |
| Teleph. | telephony, telephonic |
| Teratol. | teratology |
| Terminol. | terminology, terminological |
| Terrestr. | terrestrial |
| Test. | testament |
| Textbk. | textbook |
| Theat. | theatre, theatrical |
| Theatr. | theatre, theatrical |
| Theol. | theology, theological |
| Theoret. | theoretical |
| Thermonucl. | thermonuclear |
| Thes. | thesaurus |
| Thess. | (in the Bible) Thessalonians |
| Tim. | (in the Bible) Timothy |
| Tit. | (in the Bible) Titus |
| Topogr. | topography, topographic(al) |
| tr. | translation, translating |
| Trad. | tradition, traditional |
| Trag. | tragedy |
| trans. | transitive |
| Trans. | transaction(s) |
| transf. | transferred sense |
| transl. | translation, translating |
| Transl. | translation |
| Transubstant. | transubstantiation |
| Trav. | travel(s) |
| Treas. | treasurer, treasury |
| Treat. | treatise |
| Treatm. | treatment |
| Trib. | tribune |
| Trig. | trigonometry |
| Trigonom. | trigonometry |
| Trop. | tropical |
| Troub. | troublesome |
| Troubl. | troublesome |
| Typog. | typography |
| Typogr. | typography
|
