9 letters
- toileting13
- tormentil14
- totalling14
- trameling16
- treillage13
- tremolite13
- tremulant15
- tretinoin11
- trialogue13
- triennial12
- triennium15
- trinomial14
- truanting14
- tuitional12
- tularemia14
- ungallant16
- unilineal14
- unilinear13
- unitarian12
- unmanlier16
- unmitring17
- unreeling15
- unrolling16
- uraninite12
- urinating14
- urination12