4 letters
- roti4
- rots4
- rows7
- ruin6
- rums8
- runs6
- sain5
- sari4
- scam10
- scan8
- scar7
- scop10
- scot7
- scow10
- scry9
- scum11
- seif7
- semi7
- serf7
- shim9
- shin7
- shmo9
- shri6
- sice7
- sick11
- sics7
- sift7
- sign7
- silo5
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sire4
- sirs4
- skim11
- skin9
- slim8
- smit7
- smog9
- snib8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- soar4
- sock11
- sofa7
- soft7
- soil5
- soli5
- soma7
- some7
- sone5
- song7
- sons5
- soon5
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- sour5
- sown8
- spic10
- spin8
- sris4
- stir4
- sumo8
- surf8
- swim10
- sync10
- tics7
- tins5
- tiro4
- toms7
- tons5
- torc7
- tori4
- torn5
- tors4
- trim7
- trio4
- unci9
- unco9
- uric8
- urns6
- vims11
- vino9
- wino8
- wins8
- wons8
- worm10
- worn8
- yins7
- yoni7
- zinc17
- zins14
- zoic16
- zori13