4 letters
- bass7
- boss7
- bubs11
- buds9
- bugs10
- bums11
- buns9
- burs8
- bush10
- busk12
- buss8
- bust8
- busy10
- buts8
- buys10
- cubs11
- cuss8
- dubs9
- fubs11
- fuss8
- hubs10
- muss8
- nubs9
- pubs11
- puss8
- rubs8
- sabs7
- sass4
- sibs7
- slub9
- snub9
- sobs7
- sous5
- stub8
- suba8
- subs8
- suds6
- sues5
- sulu7
- sums8
- suns6
- sups8
- suqs14
- suss5
- tubs8
- ulus7
- urbs8
- urus6
- uses5
- wuss8
3 letters