4 letters
- shad7
- shag8
- shah8
- sham9
- shat6
- shaw9
- shay8
- shea6
- shes6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shul8
- shun8
- shut7
- sial5
- sibs7
- sics7
- sigh8
- sign7
- silo5
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sips7
- sirs4
- sith6
- sits4
- skas8
- skim11
- skin9
- skis8
- skua9
- slam8
- slim8
- slum9
- smit7
- smog9
- smug10
- smut8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- snub9
- snug8
- soak8
- soap7
- soar4
- sobs7
- soda5
- sods5
- sofa7
- soil5
- soja13
- sola5
- soli5
- solo5
- sols5
- soma7
- some7
- sone5
- song7
- sons5
- sook8
- soon5
- soot4
- soph9
- sops7
- sora4
- sori4
- sorn5
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- sown8
- sows7
- soya6
- soys6
- spam10
- span8
- spas7
- spin8
- spun9
- sris4
- stoa4
- stum8
- stun6
- suba8
- subs8
- such10
- suds6
- sues5
- sugh9
- suit5
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- sura5
- suss5
- swam10
- swan8
- swim10
- swum11
- tain5
- tams7
- tans5
- taos4
- tass4
- taus5
- than7
- thin7
- thio6
- this6
- thou7
- thus7
- tins5
- toms7
- tons5
- toom7
- toon5
- tosh6
- toss4
- tuis5
- tuna6
- tuns6
- tush7
- udos6
- ughs9
- ulan7
- ulna7
- umbo11
- umps11
- unai6
- unau7
- unci9
- unco9
- undo7
- unit6
- unto6
- upas8
- upon9
- urns6
- ursa5
- uses5
- utas5
- vain9
- vans9
- vaus9
- vims11
- vina9
- vino9
- visa8
- wain8
- wans8
- wash9
- wham12
- whim12
- whin10
- whoa9
- whom12
- wino8
- wins8
- wish9
- wiss7
- wons8
- woos7
- wuss8