9 letters
- serotonin11
- serration10
- sextarius17
- signature13
- snakeroot14
- snarkiest14
- snarliest11
- snoopiest13
- snootiest10
- snooziest19
- snoutiest11
- soapstone13
- solations11
- solutions12
- sonicates13
- sonorants11
- sootiness10
- sororates9
- sorptions13
- sostenuti11
- sostenuto11
- sourdines12
- southerns13
- southrons13
- souvenirs15
- spooniest13
- squinters20
- starnoses10
- stationer10
- stearines10
- stegosaur12
- strainers10
- straitens10
- strenuous12
- strontias10
- sturgeons13
- suctorian14
- sudations12
- sugariest12
- sunstroke15
- supinates14
- supinator14
- suricates13
- sustained12
- sustainer11
- suzerains20
- taborines13
- tandooris11
- tardiness11
- tarnishes12
- teaspoons13
- tenacious14
- tenorists10
- tessitura10
- thioureas12
- tonsorial11
- tornadoes11
- torsional11
- tortoises9
- tournedos12
- transfuse14
- transpose13
- transudes12
- travoises13
- troiluses11
- trousseau11
- truancies14
- turkoises14
- turnsoles12
- tyrosines12
- uneasiest11
- unfairest14
- unreasons12
- unserious12
- unwariest14
- urbanises14
- urbanists14
- urbanites14
- urokinase15
- virtuosas14
- virtuosos14