4 letters
- shim9
- ship9
- shmo9
- shop9
- sial5
- sibs7
- sics7
- silo5
- sima7
- simp10
- sims7
- sins5
- sipe7
- sips7
- sirs4
- sits4
- sizy15
- skas8
- skim11
- skip11
- skis8
- slam8
- slap8
- slay7
- slim8
- slip8
- slop8
- smit7
- smog9
- snap8
- snip8
- soak8
- soap7
- soar4
- sobs7
- soda5
- sods5
- sofa7
- soil5
- soja13
- sola5
- soli5
- sols5
- soma7
- some7
- sons5
- soph9
- sops7
- sora4
- sori4
- sots4
- soup8
- sous5
- sows7
- soya6
- soys6
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spry9
- sris4
- stay6
- stoa4
- stop7
- sumo8
- sump11
- sums8
- sups8
- swam10
- swap10
- sway9
- swim10
- swop10
- sybo9
- syli7
- syph11
- tamp10
- tams7
- taos4
- taps7
- tass4
- tips7
- toms7
- topi7
- tops7
- toss4
- toys6
- typo9
- umps11
- upas8
- vamp14
- vims11
- visa8
- waps10
- wasp10
- ways9
- wimp13
- wisp10
- wiss7
- wops10
- yagi8
- yaks10
- yams9
- yaps9
- yaup10
- yawp12
- yaws9
- yays8
- yeas6
- yids7
- yins7
- yipe9
- yips9
- yobs9
- yods7
- yoga8
- yogi8
- yoks10
- yoni7
- yows9
- yups10
- ywis9
- zaps16
- zips16