9 letters
- sitarists9
- situation11
- skiplanes18
- slangiest13
- slantwise14
- slatterns11
- slattings13
- sleaziest19
- slimpsier16
- slinkiest15
- slipknots18
- slipovers17
- slippiest16
- slipwares16
- sloganize22
- sloppiest16
- smaltines14
- smaltites13
- snakeroot14
- snappiest16
- snarkiest14
- snarliest11
- snazziest28
- snippiest16
- snoopiest13
- snootiest10
- snooziest19
- snottiest10
- snoutiest11
- soapiness13
- soapstone13
- soapworts15
- socialise13
- socialist13
- socialite13
- sociality15
- socialize22
- sodalites11
- soilborne14
- solanders12
- solanines12
- solarised11
- solarises10
- solarized20
- solarizes19
- solations11
- solemnity16
- solenoids12
- solicitor13
- solipsist13
- solitaire10
- solutions12
- solvation15
- sonicates13
- sonorants11
- sootiness10
- sophistry16
- sopranino14
- sorbitols13
- sororates9
- sorptions13
- sortieing12
- sortition10
- sostenuti11
- sostenuto11
- sottishly14
- spaetzles22
- spandrels15
- spandrils15
- spanglier16
- sparingly18
- sparkiest16
- sparlings16
- sparriest12
- sparteine13
- spearmint16
- specialty18
- spectator15
- spindlers15
- spindlier15
- spinosity15
- spinsters13
- spinulose15
- spiracles16
- spiraling16
- spiritist12
- spiritoso12
- spiritous13
- spiritual14
- spirituel14
- spitfires15
- spittoons13
- splashier15
- splatters13
- splatting16
- splayfoot18
- splendors15
- splinters14
- splintery16
- splitters13
- splitting16
- splutters14
- spluttery16
- spoilages15
- spoilsman17
- spoilsmen17
- spoliated14
- spoliates13
- spoliator13
- spongiest15
- sponsored14
- spookiest16
- spoolings16
- spooniest13
- sporocyst17
- sporozoan22
- sportiest12
- sportsman16
- sportsmen16
- sporulate14
- spottable16
- spottiest12
- sprattled14
- sprattles13
- springals16
- springily18
- sprinkles18
- sprinters13
- spritsail13
- spritzers21
- spritzing24
- spymaster17
- stability15
- stabilize22
- stainless11
- stalkiest14
- stallions12
- stanhopes15
- stannites11
- stapelias13
- starlings13
- starnoses10
- starriest9
- startlers10
- startling13
- statelier10
- stateroom12
- stational11
- stationed11
- stationer10
- stealings13
- steapsins13
- stearines10
- stenotype15
- stenotypy17
- sterilant11
- sterility12
- sterilize19
- sterlings13
- sternites10
- sternmost13
- sternpost13
- sternways15
- steroidal11
- stibnites13
- stictions13
- stilbites13
- stilettos10
- stilliest11
- stingiest12
- stingrays14
- stinkiest14
- stinkpots17
- stipplers16
- stipulate14
- stolidest11
- stolidity13
- stolports13
- stoneboat13
- stonecrop16
- stonewort13
- stopovers16
- storables13
- storeship14
- stormiest12
- strainers10
- straitens10
- straitest9
- strangely15
- strangest12
- strangles13
- strapless13
- strawiest12
- striating12
- striation10
- stripiest12
- stripings15
- stripling16
- strobilae13
- strobiles13