4 letters
- anus6
- bans8
- bens8
- bins8
- bubs11
- buds9
- bugs10
- bums11
- bund10
- bung11
- bunk13
- bunn10
- buns9
- bunt9
- burn9
- burs8
- bush10
- busk12
- buss8
- bust8
- busy10
- buts8
- buys10
- cubs11
- dubs9
- duns7
- fubs11
- funs9
- gnus8
- guns8
- hubs10
- huns8
- muns9
- nabs8
- nebs8
- nibs8
- nobs8
- nous6
- nubs9
- numb12
- nuns7
- nuts6
- onus6
- pubs11
- puns9
- rubs8
- runs6
- shun8
- slub9
- snib8
- snob8
- snub9
- snug8
- spun9
- stub8
- stun6
- suba8
- subs8
- sung8
- sunk10
- sunn7
- suns6
- tubs8
- tuns6
- unbe9
- urbs8
- urns6
3 letters
- abs6
- ban7
- bas6
- ben7
- bin7
- bis6
- bos6
- bub10
- bud8
- bug9
- bum10
- bun8
- bur7
- bus7
- but7
- buy9
- bys8
- cub10
- dub8
- dun6
- ens4
- fub10
- fun8
- gnu7
- gun7
- hub9
- hun7
- ins4
- jun14
- jus13
- mun8
- mus7
- nab7
- neb7
- nib7
- nob7
- nos4
- nub8
- nun6
- nus5
- nut5
- ons4
- pub10
- pun8
- pus7
- rub7
- run5
- sab6
- sau4
- sen4
- sib6
- sin4
- sob6
- son4
- sou4
- sub7
- sue4
- sum7
- sun5
- sup7
- suq13
- syn6
- tub7
- tun5
- uns5
- ups7
- urb7
- urn5
- use4
- uts4