4 letters
- repp10
- reps7
- resh6
- rest4
- rete4
- rets4
- revs8
- rhea6
- rhos6
- rhus7
- rias4
- ribs7
- rice7
- rich9
- rick11
- ride5
- rids5
- riel5
- rife7
- rifs7
- rigs6
- rile5
- rime7
- rims7
- rind6
- ring7
- rink9
- rins5
- ripe7
- rips7
- rise4
- risk8
- rite4
- rive8
- rocs7
- roes4
- rope7
- rose4
- roue5
- roup8
- rube8
- rubs8
- ruck12
- rude6
- rued6
- ruer5
- rues5
- ruga7
- rugs7
- ruin6
- rule6
- rump11
- rums8
- rune6
- rung8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruth7
- ruts5
- ryes6
- sage6
- sain5
- sane5
- sang7
- sari4
- scag9
- scan8
- scar7
- scop10
- scry9
- scud9
- scum11
- scup11
- scut8
- sear4
- secs7
- sect7
- seed5
- seek8
- seel5
- seem7
- seen5
- seep7
- seer4
- sees4
- sego6
- segs6
- seif7
- seis4
- seme7
- semi7
- send6
- sene5
- sent5
- sept7
- sera4
- sere4
- serf7
- sers4
- sewn8
- shag8
- shea6
- shed7
- shes6
- shew9
- shim9
- shin7
- ship9
- shit6
- shiv10
- shoe6
- shog8
- shop9
- shri6
- shul8
- shun8
- shut7
- sice7
- sick11
- sics7
- side5
- sigh8
- sign7
- sike8
- simp10
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- sire4
- sirs4
- site4
- sith6
- size13
- skee8
- skeg10
- skep11
- skin9
- skip11
- slip8
- slue6
- slug8
- slur6
- smug10
- snag7
- snap8
- sned6
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- snye7
- sone5
- song7
- soph9
- sore4
- sori4
- sorn5
- soup8
- sour5
- spae7
- span8
- spar7
- spec10
- sped8
- spew10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spry9
- spud9
- spue8
- spun9
- spur8
- sris4
- step7
- stir4
- stun6
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- sugh9
- suit5
- sump11
- sung8
- sunk10