10 letters
- triarchies15
- triathlons14
- trichiases15
- trichinous17
- trickliest18
- tricotines14
- triennials13
- trifoliate14
- trillionth15
- trilobites14
- trinomials15
- triplicate17
- trisecting16
- trisection14
- triskelion16
- tristearin11
- triticales14
- trochanter16
- trochlears16
- trochoidal17
- uintahites14
- ulceration16
- ultraistic15
- ultrasonic16
- unactorish17
- unartistic15
- unathletic18
- urtication15
- vanitories15
- ventilator16
- violations16
- vocalities18
- voracities17
- whitetails16
- xenolithic24
- zoolatries20