4 letters
- rifs7
- rift7
- riot4
- robs7
- roil5
- rolf8
- roti4
- rotl5
- rots4
- sabs7
- sail5
- sals5
- salt5
- sash6
- sati4
- scot7
- seif7
- seis4
- self8
- sels5
- sets4
- shat6
- shes6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shul8
- shut7
- sial5
- sibb10
- sibs7
- sics7
- sift7
- sigh8
- sild6
- silk9
- sill6
- silo5
- silt5
- sims7
- sinh7
- sins5
- sips7
- sirs4
- site4
- sith6
- sits4
- skis8
- skit8
- slab8
- slat5
- slid6
- slim8
- slip8
- slit5
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slub9
- slut6
- smit7
- snib8
- snit5
- snob8
- snot5
- sobs7
- sods5
- sofa7
- soft7
- soil5
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- sons5
- soot4
- soph9
- sops7
- sorb7
- sori4
- sort4
- soth6
- sots4
- soul6
- sous5
- sows7
- soys6
- spit7
- spot7
- sris4
- stab7
- stir4
- stoa4
- stob7
- stop7
- stow7
- stub8
- subs8
- suit5
- swob10
- swot7
- sybo9
- syli7
- tabs7
- tail5
- tali5
- taos4
- tass4
- tels5
- thin7
- thio6
- thir6
- this6
- thou7
- thro6
- thus7
- tics7
- ties4
- tiff10
- tile5
- till6
- tils5
- tilt5
- tins5
- tips7
- tirl5
- tiro4
- tits4
- toby9
- tods5
- toes4
- toff10
- toft7
- tofu8
- togs6
- toil5
- toit4
- tola5
- told6
- tole5
- toll6
- tolu6
- tomb10
- toms7
- tons5
- tool5
- toph9
- topi7
- tops7
- tori4
- tors4
- tosh6
- toss4
- tost4
- tots4
- tows7
- toys6
- trio4
- tsks8
- tubs8
- tuis5
- tush7
- twos7
- viol9
- volt9
- whit9
- wilt8
- wish9
- wiss7
- wist7
- with9
- wits7
- wolf11
- wost7
- wots7
- yobs9
- zits13