4 letters
- obes7
- ocas7
- once8
- ones5
- orbs7
- orca7
- orcs7
- ores4
- orts4
- osar4
- race7
- raft7
- rant5
- rase4
- rash6
- rate4
- rath6
- rato4
- rats4
- rebs7
- recs7
- refs7
- reft7
- rent5
- resh6
- rest4
- rets4
- rhea6
- rhos6
- roan5
- robe7
- robs7
- rocs7
- roes4
- rose4
- rota4
- rote4
- rots4
- sabe7
- safe7
- sane5
- sate4
- scab10
- scan8
- scar7
- scat7
- scot7
- sear4
- seat4
- sect7
- sent5
- sera4
- serf7
- seta4
- shat6
- shea6
- shoe6
- shot6
- snob8
- snot5
- soar4
- sofa7
- soft7
- sone5
- sora4
- sorb7
- sore4
- sorn5
- sort4
- soth6
- stab7
- star4
- stoa4
- stob7
- tabs7
- tace7
- tach9
- taco7
- tahr6
- tans5
- taos4
- tare4
- tarn5
- taro4
- tars4
- tear4
- teas4
- tens5
- tern5
- thae6
- than7
- then7
- thro6
- toea4
- toes4
- tone5
- tons5
- tora4
- torc7
- tore4
- torn5
- tors4
- tosh6
- tref7
- tsar4