10 letters
- sermonette14
- shortening16
- smothering18
- spirochete18
- stenchiest16
- stenotherm16
- stentorian12
- stepmother18
- strengthen16
- stretchier15
- stretching18
- strychnine19
- tachometer18
- technetium20
- tectonisms17
- tenantries12
- tenotomies14
- tensioners12
- terebinths16
- terminates14
- tetchiness16
- theonomies16
- thermionic19
- thermistor15
- thermosets15
- thickeners20
- thorniness14
- threnodies14
- threnodist14
- threonines14
- tighteners15
- tonometers14
- tormenters14
- tormentils15
- tormenting17
- transience15
- tremolites14
- tretinoins12
- tricotines14
- trisection14
- truncheons18
- unesthetic17
- uninterest13
- ventricose18
- viscometer20