- Thirty-sixth Num. Subst.
- Thirty-third Num.
- Thirty-thousandth Num.
- Thirty-three Num.
- Thirty-two Num.
- Thirty-year-old Adj. Subst.
- Thirtyfold Adj. Adv.
- This Pron. Adj. Adv.
- This will
- Thisness Subst.
- Thistle Subst. Adj.
- Thistly Adj.
- Thither Adv.
- Thitherward Adv. Adj.
- Thixotropic Adj.
- Thixotropy Subst.
- Thole Subst. Verb
- Tholeiitic Adj.
- Tholeitic Adj.
- Tholepin Subst. Adj.
- Tholobate Subst.
- Tholos Subst. Adj.
- Tholus Subst.
- Thomas Subst. Eigenn.
- Thomistic Adj.
- Thompson Subst. Eigenn. Adj.
- Thomsen Subst. Eigenn. Adj.
- Thomsenolite Subst. Adj.
- Thomsonite Subst. Adj.
- Thong Subst. Verb Adj.
- Thonged Adj.
- Thonging Subst. Adj.
- Thor Subst. Eigenn.
- Thoracal Adj.
- Thoracentesis Subst.
- Thoracic Adj.
- Thoracoabdominal Adj.
- Thoracoacromial Adj.
- Thoracobrachial Adj.
- Thoracocentesis Subst.
- Thoracocervical Adj.
- Thoracodidymus Subst. Adj.
- Thoracodorsal Adj.
- Thoracoepigastric Adj. Subst.
- Thoracolaparotomy Subst. Adj.
- Thoracolumbar Adj.
- Thoracolysis Subst.
- Thoracopagus Subst. Adj.
- Thoracoplasty Subst. Adj.
- Thoracoscopic Adj.
- Thoracoscopy Subst.
- Thoracotomy Subst. Adj.
- Thorax Subst. Adj.
- Thoria Subst. Adj.
- Thorianite Subst. Adj.
- Thoriated Adj. Part. Perf.
- Thorite Subst. Adj.
- Thorium Subst. Adj.
- Thorium-containing Part. Präs.
- Thorn Subst. Verb