4 letters
- rood5
- room7
- root4
- roti4
- rotl5
- roto4
- rots4
- rout5
- rums8
- rush7
- rust5
- ruth7
- ruts5
- sadi5
- said5
- sail5
- salt5
- sati4
- saul6
- scot7
- scud9
- scum11
- scut8
- semi7
- shad7
- sham9
- shat6
- shed7
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shul8
- shun8
- shut7
- sial5
- side5
- sift7
- sigh8
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sims7
- sinh7
- site4
- sith6
- sits4
- skid9
- skim11
- skit8
- slam8
- slat5
- sled6
- slid6
- slim8
- slip8
- slit5
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smit7
- smog9
- smug10
- smut8
- snit5
- snot5
- soda5
- sods5
- soft7
- soil5
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- soma7
- some7
- sook8
- soon5
- soot4
- soph9
- sord5
- sori4
- sort4
- soth6
- sots4
- souk9
- soul6
- soup8
- sour5
- sous5
- spit7
- spot7
- spud9
- stem7
- stir4
- stoa4
- stob7
- stop7
- stow7
- stub8
- stud6
- stum8
- stun6
- such10
- sudd7
- suds6
- sued6
- suet5
- sugh9
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- surd6
- swim10
- swot7
- swum11
- syli7
- tads5
- tail5
- tali5
- tams7
- taos4
- taus5
- teds5
- tels5
- them9
- thin7
- thio6
- thir6
- this6
- thou7
- thro6
- thru7
- thud8
- thug9
- thus7
- tics7
- tide5
- tidy7
- tied5
- ties4
- tile5
- till6
- tils5
- tilt5
- time7
- tins5
- tips7
- tirl5
- tiro4
- tits4
- toad5
- tods5
- tody7
- toed5
- toes4
- tofu8
- togs6
- toil5
- toit4
- tola5
- told6
- tole5
- toll6
- tolu6
- tomb10
- tome7
- toms7
- tons5
- took8
- tool5
- toom7