4 letters
- nubs9
- obes7
- once8
- ones5
- orbs7
- orcs7
- ores4
- oses4
- pecs10
- peen8
- peer7
- pees7
- pens8
- pree7
- race7
- rase4
- rebs7
- reck11
- recs7
- rede5
- reds5
- reed5
- reef7
- reek8
- reel5
- rees4
- refs7
- regs6
- rein5
- reis4
- rems7
- rend6
- rent5
- reps7
- resh6
- rest4
- rete4
- rets4
- revs8
- ribs7
- rice7
- rins5
- rise4
- robe7
- robs7
- rocs7
- roes4
- rose4
- rube8
- rubs8
- rues5
- rune6
- runs6
- ruse5
- ryes6
- sabe7
- sabs7
- sacs7
- sane5
- sans5
- scab10
- scan8
- scar7
- scry9
- sear4
- seas4
- secs7
- sect7
- seed5
- seek8
- seel5
- seem7
- seen5
- seep7
- seer4
- sees4
- segs6
- seis4
- sels5
- seme7
- send6
- sene5
- sent5
- sera4
- sere4
- serf7
- sers4
- sets4
- sewn8
- sews7
- shes6
- sibs7
- sice7
- sics7
- sine5
- sins5
- sire4
- sirs4
- skee8
- sned6
- snib8
- snob8
- snub9
- snye7
- sobs7
- sone5
- sons5
- sorb7
- sore4
- sorn5
- spec10
- sris4
- subs8
- suer5
- sues5
- suns6
- sure5
- syce9
- sync10
- syne7
- teen5
- tees4
- tens5
- tern5
- tree4
- unbe9
- urbs8
- urns6
- user5
- uses5
- veer8
- vees8
- verb11
- webs10
- ween8
- weer7
- wees7
- wens8
- were7
- wren8
- yens7
- zees13