16 letters
- transliterations19
- transnationalism23
- transplantations23
- transportational22
- ultrafiltrations23
- ultranationalism24
- ultranationalist21
- unaffectionately31
- unconstitutional25
- unconventionally32
- undenominational26
- underestimations23
- underproductions28
- underutilization31
- unidirectionally27
- universalization33
- unprofessionally29
- unsophistication27
- vascularizations35
- vasoconstriction28