9 letters
- southerns13
- spheriest14
- spinsters13
- squinters20
- squintest20
- squireens20
- stearines10
- stenchier15
- sternites10
- sternness11
- stitchers14
- stonishes12
- stoutness11
- straitens10
- strengths14
- stressing12
- stretches14
- streusels11
- sturdiest11
- suberises13
- subsenses14
- subseries13
- sultriest11
- sunfishes16
- sunshines14
- superhits15
- supersets13
- superthin16
- surliness12
- suspenser14
- suspenses14
- sustainer11
- syneresis12
- synesises12
- syntheses14
- synthesis14
- tarnishes12
- tastiness10
- teensiest10
- teentsier10
- teethings14
- tenebrist13
- tenorists10
- tenorites10
- tensities10
- tenuities11
- teosintes10
- tephrites14
- terebinth15
- terseness10
- tessitura10
- tessiture10
- testiness10
- tetanises10
- tetanuses11
- tethering14
- theorises11
- theorists11
- thereinto12
- theremins15
- thereunto13
- thermites14
- theurgies14
- theurgist14
- thirsters11
- thirteens12
- thorniest12
- threatens12
- thrusters12
- thrusting15
- tightener14
- tightness14
- tigresses11
- tinctures14
- tiredness11
- trashiest11
- treatises9
- trendiest11
- trephines15
- tressiest9
- tressures10
- trismuses13
- triteness10
- trussings13
- trustiest10
- trustless11
- tundishes14
- tunesmith16
- turneries11
- turnspits14
- turnstile12
- undersets12
- undresses12
- uneasiest11
- unfetters14
- unitrusts12
- universes15
- unsettles12
- unspheres16
- unsterile12
- untethers13
- untrusses12
- upsetters13
- urethanes13
- usherette12
- whiteners15
- whiteness15
- witnesses13