4 letters
- open8
- opes7
- opts7
- opus8
- oral5
- orca7
- orcs7
- ores4
- orle5
- orts4
- osar4
- oses4
- ossa4
- ours5
- oust5
- outs5
- pace10
- pacs10
- pact10
- pale8
- pals8
- pane8
- pans8
- pant8
- pare7
- pars7
- part7
- pase7
- pass7
- past7
- pate7
- pats7
- peal8
- pean8
- pear7
- peas7
- peat7
- pecs10
- pelt8
- pens8
- pent8
- peon8
- pert7
- peso7
- pest7
- pets7
- plan9
- plat8
- plea8
- plot8
- plus9
- poco10
- poet7
- pole8
- polo8
- pols8
- pone8
- pons8
- pool8
- poon8
- poor7
- pore7
- porn8
- port7
- pose7
- post7
- pots7
- pour8
- pout8
- prao7
- prat7
- prau8
- proa7
- pros7
- psst7
- puce11
- pula9
- pule9
- puls9
- puna9
- puns9
- punt9
- pure8
- purl9
- purs8
- puss8
- puts8
- race7
- rale5
- rant5
- rape7
- raps7
- rapt7
- rase4
- rasp7
- rate4
- rato4
- rats4
- real5
- reap7
- recs7
- rent5
- repo7
- reps7
- rest4
- rets4
- roan5
- rocs7
- roes4
- role5
- root4
- rope7
- rose4
- rota4
- rote4
- rotl5
- roto4
- rots4
- roue5
- roup8
- rout5
- rues5
- rule6
- rune6
- runs6
- runt6
- ruse5
- rust5
- ruts5
- sacs7
- sale5
- salp8
- sals5
- salt5
- sane5
- sans5
- saps7
- sate4
- saul6
- scan8
- scar7
- scat7
- scop10
- scot7
- scup11
- scut8
- seal5
- sear4
- seas4
- seat4
- secs7
- sect7
- sels5
- sent5
- sept7
- sera4
- sers4
- seta4
- sets4
- slap8
- slat5
- sloe5
- slop8
- slot5
- slue6
- slur6
- slut6
- snap8
- snot5
- soap7
- soar4
- sola5
- sole5
- solo5
- sols5
- sone5
- sons5
- soon5
- soot4
- sops7
- sora4
- sore4
- sorn5
- sort4
- sots4
- soul6
- soup8
- sour5
- sous5
- spae7
- span8
- spar7
- spas7
- spat7
- spec10
- spot7
- spue8
- spun9
- spur8
- star4