4 letters
- nori5
- nous6
- nubs9
- nuns7
- nurd7
- nurl7
- nuts6
- onus6
- orcs7
- ours5
- pics10
- pigs9
- ping10
- pins8
- pirn8
- piss7
- prig9
- psis7
- pugs10
- pung11
- puns9
- puri8
- purs8
- puss8
- quin15
- ragi6
- rags6
- rain5
- rang7
- rani5
- recs7
- regs6
- rein5
- reis4
- rhus7
- rias4
- ribs7
- rice7
- rich9
- rick11
- rids5
- rifs7
- rigs6
- rims7
- rind6
- ring7
- rink9
- rins5
- rips7
- rise4
- risk8
- rocs7
- rubs8
- ruck12
- rues5
- ruga7
- rugs7
- ruin6
- rums8
- rune6
- rung8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruts5
- sacs7
- sags6
- sain5
- sang7
- sans5
- sari4
- scag9
- scan8
- scar7
- scry9
- scud9
- scum11
- scup11
- scut8
- secs7
- segs6
- seis4
- sers4
- shin7
- shri6
- shun8
- sibs7
- sice7
- sick11
- sics7
- sigh8
- sign7
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sips7
- sire4
- sirs4
- sits4
- skin9
- skis8
- slug8
- slur6
- smug10
- snag7
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- song7
- sons5
- sori4
- sorn5
- sour5
- sous5
- spic10
- spin8
- spun9
- spur8
- sris4
- stir4
- stun6
- subs8
- such10
- suck12
- suds6
- suer5
- sues5
- sugh9
- suit5
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- sura5
- surd6
- sure5
- surf8
- suss5
- swig9
- sync10
- tics7
- ting7
- tins5
- trig6
- trug7
- tugs7
- tuis5
- tung8
- tuns6
- turn6
- ughs9
- unai6
- unci9
- unco9
- unit6
- urbs8
- urds6
- urge7
- uric8
- urns6
- ursa5
- urus6
- user5
- uses5
- vigs10
- vugs11
- wigs9
- wing10
- wins8
- wiss7
- wuss8
- yins7
- zigs15
- zinc17
- zing16
- zins14