10 letters
- simulacres18
- smarminess17
- smiercases16
- sommeliers17
- sparteines14
- spearmints17
- spermaceti19
- spermaries16
- spermatium20
- spodumenes19
- spoonerism17
- sporangium20
- spruceness18
- stemmeries16
- stramonies14
- stramonium18
- submarines18
- submersion18
- suctorians15
- summarised18
- summarises17
- summarizes26
- summations18
- summeriest17
- summiteers17
- sunporches20
- supercedes18
- superclean19
- supercoils18
- supergenes17
- supermacho22
- supermales18
- supermicro20
- superminds19
- superminis18
- supernovae19
- supernovas19
- superraces17
- superscale18
- supersonic18
- supertonic18
- supervenes19
- superwoman21
- superwomen21
- supinators15
- surceasing17
- syncarpies19
- syncarpous20
- temperance20
- temporises16
- terminuses15
- treponemas17
- treponemes17
- unripeness16
- unseemlier16
- uppercases20
- urokinases16
- uroscopies17
- weaponries17
- yeomanries16