9 letters
- scurviest17
- secretins13
- sederunts12
- seigneurs13
- seigneury15
- semitists12
- seniority12
- sensitise10
- sensitive14
- sensitize19
- sentients11
- serotines10
- serotypes14
- serviette13
- servility16
- servitude15
- sestertia9
- seventies14
- shirtiest11
- siderites10
- sidespins14
- sidesteps13
- silentest11
- sincerest13
- sincerity15
- sinciputs17
- sinecures14
- sinuosity13
- sinusitis11
- sirventes14
- sistering12
- sitarists9
- snippiest16
- snivelers15
- snoutiest11
- sostenuti11
- souvenirs15
- spareness13
- sparteine13
- speerings15
- spermines16
- spheriest14
- spiceries15
- spiciness16
- spikiness17
- spineless14
- spininess14
- spinneret14
- spinosity15
- spinsters13
- spiriting15
- spiritism15
- spiritist12
- spiritous13
- spirituel14
- spitfires15
- splinters14
- splintery16
- splitters13
- splutters14
- spluttery16
- sportiest12
- sprinters13
- spruciest16
- spunkiest18
- sputtered14
- sputterer13
- squinters20
- squintest20
- squintier20
- squireens20
- steapsins13
- stearines10
- steepness13
- steevings16
- stenotype15
- sterility12
- sternites10
- sternness11
- sternpost13
- stibnites13
- stingiest12
- stinkiest14
- stoutness11
- straitens10
- stressing12
- streusels11
- stripiest12
- stripings15
- strumpets16
- stumpiest16
- stupefies16
- stupidest14
- stupidity16
- sturdiest11
- stylisers12
- stypsises14
- suaveness15
- suavities14
- suberises13
- subseries13
- subserves17
- sultriest11
- superbest16
- supercity18
- superette13
- superfine17
- superhits15
- superjets22
- superlies14
- supermini17
- supersets13
- supersize22
- superthin16
- supervene18
- supervise17
- supinates14
- supremest16
- surliness12
- surprints14
- surprises13
- surveying19
- suspender15
- suspenser14
- suspenses14
- suspensor14
- suspiring16
- sustainer11
- synereses12
- syneresis12
- synergies14
- synergist14
- synesises12
- synizeses21
- synizesis21
- synovitis16
- syntheses14
- synthesis14
- tantivies14
- tastiness10
- teensiest10
- teentsier10
- temptress15
- tenebrist13
- tenorists10
- tenorites10
- tensility13
- tensities10
- tenuities11
- teosintes10
- tephrites14
- tepidness14
- terseness10
- tessitura10
- tessiture10
- testifier12
- testifies12
- testiness10
- tetanises10
- tetanuses11
- thirteens12
- tigresses11
- tinctures14
- tipsiness13
- tipstaves16
- tiredness11
- tirrivees13
- transepts13
- trapnests13
- treatises9
- trendiest11
- trephines15
- tressiest9
- tressures10
- tricepses15
- trinities10
- triplites13
- trippiest15
- triptanes13
- trismuses13
- triteness10
- truepenny17
- trussings13
- trustiest10
- trustless11
- turneries11
- turnpikes18
- turnspits14
- turnstile12
- typewrite17
- typifiers17
- tyrosines12
- uintaites11
- undersets12
- undresses12
- uneasiest11
- unfetters14
- unitizers20
- unitrusts12
- universes15