4 letters
- rhos6
- rhus7
- rial5
- rias4
- ribs7
- rich9
- rick11
- rids5
- rifs7
- rift7
- rigs6
- rime7
- rims7
- rimy9
- rink9
- rins5
- riot4
- rips7
- rise4
- risk8
- rite4
- ritz13
- roam7
- roar4
- robs7
- roms7
- rota4
- roti4
- rots4
- rubs8
- rums8
- rush7
- rusk9
- rust5
- ruth7
- ruts5
- ryas6
- sabe7
- sabs7
- sack11
- sadi5
- said5
- sail5
- sain5
- sake8
- saki8
- salt5
- same7
- samp10
- sank9
- sard5
- sari4
- sark8
- sash6
- sate4
- sati4
- scab10
- scam10
- scar7
- scat7
- seam7
- sear4
- seat4
- semi7
- sera4
- seta4
- shad7
- shag8
- shah8
- sham9
- shat6
- shaw9
- shay8
- shea6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shot6
- shri6
- shut7
- sial5
- sibb10
- sibs7
- sick11
- sift7
- sigh8
- sike8
- silk9
- silt5
- sima7
- simp10
- sims7
- sinh7
- sink9
- sire4
- sirs4
- site4
- sith6
- sits4
- skag10
- skas8
- skat8
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- skua9
- slab8
- slam8
- slat5
- slim8
- slit5
- smit7
- smut8
- snib8
- snit5
- soak8
- soar4
- soma7
- sora4
- sorb7
- sori4
- sort4
- soth6
- spam10
- spar7
- spat7
- spik11
- spit7
- sris4
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stem7
- stir4
- stoa4
- stob7
- stub8
- stum8
- suba8
- suit5
- sura5
- swab10
- swam10
- swat7
- swim10
- tabs7
- tabu8
- tach9
- tack11
- tads5
- tags6
- tahr6
- tail5
- tain5
- taka8
- take8
- tali5
- talk9
- tame7
- tamp10
- tams7
- tank9
- tans5
- taos4
- taps7
- tare4
- tarn5
- taro4
- tarp7
- tars4
- tart4
- task8
- tass4
- tats4
- taus5
- tavs8
- taws7
- taxi11
- teak8
- team7
- tear4
- teas4
- term7
- thae6
- than7
- that6
- thaw9
- them9
- thin7
- thio6
- thir6