4 letters
- riot4
- ripe7
- rips7
- rise4
- risk8
- rite4
- ritz13
- road5
- robs7
- rock11
- rocs7
- rode5
- rods5
- roes4
- roil5
- romp10
- roms7
- rood5
- roof7
- rook8
- room7
- root4
- rope7
- ropy9
- rose4
- rosy6
- rota4
- rote4
- roti4
- rotl5
- roto4
- rots4
- roup8
- rout5
- rows7
- rush7
- rust5
- ruth7
- ruts5
- ryot6
- sacs7
- sadi5
- said5
- saps7
- sard5
- sari4
- sash6
- sati4
- scad8
- scar7
- scat7
- scop10
- scot7
- scow10
- scry9
- scud9
- scup11
- scut8
- secs7
- sect7
- seis4
- sept7
- sers4
- sets4
- shad7
- shat6
- shed7
- shes6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shut7
- sibs7
- sice7
- sick11
- sics7
- side5
- sift7
- sigh8
- sild6
- silo5
- silt5
- simp10
- sims7
- sinh7
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- sith6
- sits4
- skid9
- skip11
- skis8
- skit8
- slid6
- slip8
- slit5
- slop8
- slot5
- smit7
- snip8
- snit5
- snot5
- soap7
- soar4
- sobs7
- sock11
- soda5
- sods5
- soft7
- soil5
- sold6
- soli5
- solo5
- sols5
- sons5
- sook8
- soon5
- soot4
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- soth6
- sots4
- soup8
- sour5
- sous5
- sows7
- soys6
- spar7
- spas7
- spat7
- spec10
- sped8
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spry9
- spud9
- spur8
- sris4
- star4
- step7
- stir4
- stoa4
- stob7
- stop7
- stow7
- stud6
- such10
- suds6
- suit5
- sups8
- surd6
- swop10
- swot7
- syph11
- tach9
- taco7
- tads5
- tahr6
- taos4
- taps7
- taro4
- tarp7
- tars4
- tass4
- teds5
- thin7
- thio6
- thir6
- this6
- thou7
- thro6
- thru7
- thud8
- thus7