5 letters
- barns9
- blurs10
- bonus10
- bosun10
- bourn10
- brans9
- brens9
- brins9
- bruin10
- brunt10
- brush11
- brusk13
- buhrs11
- bunds11
- bungs12
- bunks14
- bunns11
- bunts10
- buran10
- buras9
- burbs12
- burds10
- burgs11
- burin10
- burls10
- burns10
- burnt10
- burps12
- burrs9
- bursa9
- burse9
- burst9
- curbs12
- curns10
- drubs10
- durns8
- grubs11
- knurs11
- numbs13
- nurds8
- nurls8
- nurse7
- rebus9
- rubes9
- rubus10
- ruins7
- runes7
- rungs9
- runts7
- scrub12
- shrub11
- slurb10
- snubs10
- spurn10
- suber9
- turns7
- unbar10
- urban10
4 letters
- anus6
- arbs7
- bans8
- barn8
- bars7
- bens8
- bins8
- blur9
- born8
- bran8
- bras7
- bren8
- brin8
- bris7
- bros7
- brut8
- bubs11
- buds9
- bugs10
- buhr10
- bums11
- bund10
- bung11
- bunk13
- bunn10
- buns9
- bunt9
- bura8
- burd9
- burg10
- burl9
- burn9
- burp11
- burr8
- burs8
- bury10
- bush10
- busk12
- buss8
- bust8
- busy10
- buts8
- buys10
- crus8
- cubs11
- curb11
- curn9
- curs8
- drub9
- dubs9
- duns7
- durn7
- erns5
- fubs11
- funs9
- furs8
- gnus8
- grub10
- guns8
- hubs10
- huns8
- knur10
- muns9
- nabs8
- nebs8
- nibs8
- nobs8
- nous6
- nubs9
- numb12
- nuns7
- nurd7
- nurl7
- nuts6
- onus6
- orbs7
- ours5
- pubs11
- puns9
- purs8
- rebs7
- rhus7
- ribs7
- rins5
- robs7
- rube8
- rubs8
- ruby10
- rues5
- rugs7
- ruin6
- rums8
- rune6
- rung8
- runs6
- runt6
- ruse5
- rush7
- rusk9
- rust5
- ruts5
- shun8
- slub9
- slur6
- snib8
- snob8
- snub9
- snug8
- sorb7
- sorn5
- sour5
- spun9
- spur8
- stub8
- stun6
- suba8
- subs8
- suer5
- sung8
- sunk10
- sunn7
- suns6
- sura5
- surd6
- sure5
- surf8
- tubs8
- tuns6
- turn6
- unbe9
- urbs8
- urds6
- urns6
- ursa5
- urus6
- user5
3 letters
- abs6
- arb6
- ars3
- ban7
- bar6
- bas6
- ben7
- bin7
- bis6
- bos6
- bra6
- bro6
- brr6
- bub10
- bud8
- bug9
- bum10
- bun8
- bur7
- bus7
- but7
- buy9
- bys8
- cub10
- cur7
- dub8
- dun6
- ens4
- ern4
- ers3
- fub10
- fun8
- fur7
- gnu7
- gun7
- hub9
- hun7
- ins4
- jun14
- jus13
- mun8
- mus7
- nab7
- neb7
- nib7
- nob7
- nor4
- nos4
- nub8
- nun6
- nus5
- nut5
- ons4
- orb6
- ors3
- our4
- pub10
- pun8
- pur7
- pus7
- ran4
- ras3
- reb6
- res3
- rib6
- rin4
- rob6
- rub7
- rue4
- rug6
- rum7
- run5
- rut4
- sab6
- sau4
- sen4
- ser3
- sib6
- sin4
- sir3
- sob6
- son4
- sou4
- sri3
- sub7
- sue4
- sum7
- sun5
- sup7
- suq13
- syn6
- tub7
- tun5
- uns5
- ups7
- urb7
- urd5
- urn5
- use4
- uts4