4 letters
- shin7
- ship9
- shri6
- sial5
- side5
- sigh8
- sign7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- skag10
- skid9
- skin9
- skip11
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- sled6
- slid6
- slim8
- slip8
- slit5
- slog7
- slop8
- slug8
- slur6
- snag7
- snap8
- snaw8
- sned6
- snib8
- snip8
- snit5
- snog7
- snug8
- soap7
- soar4
- soda5
- soil5
- sola5
- sold6
- soli5
- song7
- sora4
- sord5
- sori4
- sorn5
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- sped8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spud9
- spun9
- spur8
- sris4
- stag6
- star4
- stir4
- sudd7
- sung8
- sura5
- surd6
- swag9
- swan8
- swap10
- swig9
- syli7
- tads5
- tags6
- tail5
- tain5
- tali5
- tang7
- tans5
- taps7
- tarn5
- tarp7
- tars4
- tils5
- ting7
- tins5
- tips7
- tirl5
- trad5
- trap7
- trig6
- trip7
- tsar4
- ulan7
- ulna7
- unai6
- upas8
- urds6
- urns6
- ursa5
- vagi10
- vail9
- vain9
- vair8
- vang11
- vans9
- vars8
- vial9
- viga10
- vigs10
- vina9
- virl9
- visa8
- wadi8
- wads8
- wags9
- wail8
- wain8
- wair7
- wand9
- wans8
- waps10
- ward8
- warn8
- warp10
- wars7
- wasp10
- wigs9
- wild9
- wind9
- wing10
- wins8
- wisp10
- wrap10
- yagi8
- yald8
- yang9
- yaps9
- yard7
- yarn7
- yids7
- yins7
- yips9
- yird7
- zags15
- zaps16
- zigs15
- zing16
- zins14
- zips16