9 letters
- sickliest17
- signalise13
- silicates13
- silicones14
- simplices19
- sincipita16
- sinciputs17
- singspiel16
- sinistral11
- skeptical20
- skiplanes18
- slangiest13
- slantwise14
- slapstick20
- slinkiest15
- slipcased17
- slipcases16
- slippiest16
- smaltines14
- snappiest16
- snarliest11
- snippiest16
- socialise13
- socialist13
- socialite13
- sonicates13
- spacesuit16
- specialty18
- speciates15
- spiciness16
- spinaches18
- spiracles16
- splenetic17
- splinters14
- spoliates13
- spritsail13
- stainless11
- stapelias13
- stealings13
- steapsins13
- stickpins20
- supinates14
- tacitness13
- tackiness17
- taeniasis10
- tailpiece16
- tailpipes16
- tailspins14
- taintless11
- talkiness15
- tapelines14
- tasseling13
- thespians15
- tieclasps16
- tinplates14
- tipsiness13
- traplines14
- triplanes14
- vesicants17
- vitalises14
- waistline14