4 letters
- scam10
- scan8
- scar7
- scat7
- scry9
- sear4
- sera4
- shag8
- shin7
- shri6
- sial5
- sice7
- sick11
- sics7
- sigh8
- sign7
- sike8
- silk9
- sima7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sire4
- sirs4
- skag10
- skas8
- skat8
- skeg10
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- skua9
- slag7
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snog7
- snug8
- soak8
- soar4
- sock11
- soja13
- song7
- sora4
- sori4
- sorn5
- span8
- spar7
- spic10
- spik11
- spin8
- sris4
- stag6
- star4
- stir4
- suck12
- sung8
- sunk10
- sura5
- swag9
- swan8
- swig9
- sync10
- tack11
- tags6
- tain5
- taka8
- tang7
- tank9
- tans5
- tarn5
- tars4
- task8
- tick11
- tics7
- ting7
- tins5
- trig6
- tsar4
- unai6
- unci9
- uric8
- urns6
- ursa5
- vacs11
- vagi10
- vain9
- vair8
- vang11
- vans9
- vara8
- vars8
- vasa8
- viga10
- vigs10
- vina9
- visa8
- wack14
- wags9
- wain8
- wair7
- wans8
- wark11
- warn8
- wars7
- wick14
- wigs9
- wing10
- wink12
- wins8
- yack13
- yagi8
- yaks10
- yang9
- yank11
- yarn7
- yins7
- zags15
- zigs15
- zinc17
- zing16
- zins14