4 letters
- runs6
- ruse5
- ryes6
- sain5
- same7
- samp10
- sane5
- sari4
- scam10
- scan8
- scar7
- scop10
- scry9
- scum11
- scup11
- seam7
- sear4
- secs7
- sect7
- seed5
- seek8
- seel5
- seem7
- seen5
- seep7
- seer4
- sees4
- seif7
- seis4
- seme7
- semi7
- send6
- sene5
- sent5
- sept7
- sera4
- sere4
- serf7
- sers4
- sewn8
- shim9
- shin7
- ship9
- shri6
- sice7
- sick11
- sics7
- side5
- sign7
- sike8
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- size13
- skee8
- skep11
- skim11
- skin9
- skip11
- slim8
- slip8
- smew10
- smit7
- snap8
- sned6
- snib8
- snip8
- snit5
- snye7
- some7
- sone5
- sore4
- sori4
- sorn5
- spae7
- spam10
- span8
- spar7
- spec10
- sped8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spue8
- spun9
- spur8
- sris4
- stem7
- step7
- stir4
- suer5
- sump11
- supe8
- sure5
- swim10
- syce9
- sync10
- syne7
- teem7
- teen5
- tees4
- temp10
- tens5
- term7
- tern5
- tics7
- tier4
- ties4
- time7
- tine5
- tins5
- tipi7
- tips7
- tire4
- tree4
- trim7
- trip7
- umps11
- unci9
- uric8
- urns6
- user5
- veep11
- veer8
- vees8
- vein9
- vice11
- vier8
- vies8
- vims11
- vine9
- vise8
- ween8
- weep10
- weer7
- wees7
- weir7
- wens8
- were7
- wimp13
- wine8
- wins8
- wipe10
- wire7
- wise7
- wisp10
- wren8
- yens7
- yins7
- yipe9
- yips9
- zees13
- zein14
- zinc17
- zins14
- zips16