10 letters
- saliencies15
- saltpeters14
- sanitaries11
- sapiencies17
- saprolites14
- scapolites17
- scarcities16
- scrappiest19
- scrawliest17
- scrimpiest19
- sectarians14
- secularise15
- secularist15
- securities14
- semestrial14
- separately16
- separatism16
- separatist13
- separative17
- sepiolites14
- septenarii14
- septicemia19
- septicidal18
- serialised12
- serialises11
- serialists11
- serializes20
- shapeliest16
- slipstream17
- socialites14
- solitaires11
- solitaries11
- sparkliest18
- sparsities13
- sparteines14
- specialest17
- specialise17
- specialism20
- specialist17
- speciality19
- specialize26
- specifiers19
- spectacles20
- speculates18
- spermaceti19
- spermatial17
- sphalerite16
- spideriest14
- spiritless14
- spirituals15
- splenetics18
- sprawliest17
- spritsails14
- staircases13
- stavesacre17
- stencilers15
- sterilizes20
- stripeless14
- striptease13
- superscale18
- tailpieces17
- tapestries13
- timescales17
- trichiases15
- triplicate17
- triticales14
- veracities17
- vespiaries17
- vestiaries14
- vicariates17
- waterscape19