4 letters
- rasp7
- reis4
- rems7
- repo7
- reps7
- revs8
- rhos6
- rias4
- ribs7
- rids5
- rifs7
- rigs6
- rime7
- rims7
- rimy9
- rins5
- riot4
- ripe7
- rips7
- rise4
- risk8
- rive8
- roam7
- robs7
- rocs7
- rods5
- roes4
- roil5
- romp10
- roms7
- room7
- rope7
- ropy9
- rose4
- rosy6
- roti4
- rots4
- roup8
- rove8
- rows7
- rump11
- rums8
- samp10
- sari4
- scop10
- semi7
- shim9
- ship9
- shiv10
- shmo9
- shop9
- shri6
- silo5
- sima7
- simp10
- sims7
- sipe7
- sips7
- sire4
- sirs4
- skim11
- skip11
- slim8
- slip8
- slop8
- smit7
- smog9
- snip8
- soap7
- soar4
- soil5
- soli5
- soma7
- some7
- soph9
- sops7
- sora4
- sorb7
- sord5
- sore4
- sori4
- sorn5
- sort4
- soup8
- sour5
- spam10
- spar7
- spic10
- spik11
- spin8
- spit7
- spiv11
- spot7
- spry9
- spur8
- sris4
- stir4
- stop7
- sumo8
- sump11
- swim10
- swop10
- tips7
- tiro4
- toms7
- topi7
- tops7
- tori4
- tors4
- trim7
- trio4
- trip7
- trop7
- umps11
- vair8
- vamp14
- vars8
- vier8
- vies8
- vigs10
- vims11
- vino9
- viol9
- virl9
- visa8
- vise8
- voes8
- void9
- vows11
- vrow11
- wimp13
- wisp10
- wops10
- worm10
- yips9
- zips16
- zori13