4 letters
- roil5
- romp10
- roms7
- room7
- sail5
- sain5
- salp8
- samp10
- scop10
- semi7
- shim9
- shin7
- ship9
- shmo9
- shoo6
- shop9
- sial5
- sign7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- skim11
- skin9
- skip11
- slam8
- slap8
- slid6
- slim8
- slip8
- slit5
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slum9
- smit7
- smog9
- snap8
- snib8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- soap7
- soil5
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- soma7
- some7
- sone5
- song7
- sons5
- sook8
- soon5
- soot4
- soph9
- sops7
- sori4
- sorn5
- soul6
- soup8
- sown8
- spam10
- span8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spun9
- stop7
- sumo8
- sump11
- swim10
- swop10
- syli7
- tils5
- tins5
- tips7
- toil5
- toms7
- tons5
- tool5
- toom7
- toon5
- topi7
- tops7
- umps11
- upon9
- vims11
- vino9
- viol9
- wimp13
- wino8
- wins8
- wisp10
- wons8
- wool8
- woos7
- wops10
- yins7
- yips9
- yoni7
- zins14
- zips16
- zoom16
- zoon14
- zoos13