5 letters
- barks12
- birks12
- blurs10
- brisk12
- brush11
- brusk13
- bucks16
- buhrs11
- bulks14
- bunks14
- buras9
- burbs12
- burds10
- burgs11
- burke13
- burls10
- burns10
- burps12
- burrs9
- bursa9
- burse9
- burst9
- busks13
- curbs12
- drubs10
- grubs11
- kbars12
- kerbs12
- knurs11
- krubi13
- kurus11
- lurks11
- murks13
- rebus9
- rubes9
- rubus10
- rucks13
- rusks10
- scrub12
- shrub11
- slurb10
- suber9
- turks10
4 letters
- arbs7
- arks8
- auks9
- bark11
- bars7
- bask11
- birk11
- bisk11
- blur9
- bosk11
- bras7
- bris7
- bros7
- brut8
- bubs11
- buck15
- buds9
- bugs10
- buhr10
- bulk13
- bums11
- bunk13
- buns9
- bura8
- burd9
- burg10
- burl9
- burn9
- burp11
- burr8
- burs8
- bury10
- bush10
- busk12
- buss8
- bust8
- busy10
- buts8
- buys10
- crus8
- cubs11
- curb11
- curs8
- cusk12
- drub9
- dubs9
- dusk10
- fubs11
- furs8
- grub10
- hubs10
- husk11
- irks8
- kabs11
- kbar11
- kerb11
- kirs8
- knur10
- kobs11
- kors8
- kris8
- kues9
- kuru10
- lurk10
- murk12
- musk12
- nubs9
- orbs7
- ours5
- pubs11
- purs8
- rebs7
- rhus7
- ribs7
- risk8
- robs7
- rube8
- rubs8
- ruby10
- ruck12
- rues5
- rugs7
- rums8
- runs6
- ruse5
- rush7
- rusk9
- rust5
- ruts5
- sark8
- skua9
- slub9
- slur6
- snub9
- sorb7
- souk9
- sour5
- spur8
- stub8
- suba8
- subs8
- suck12
- suer5
- sulk10
- sunk10
- sura5
- surd6
- sure5
- surf8
- tubs8
- turk9
- tusk9
- ukes9
- urbs8
- urds6
- urns6
- ursa5
- urus6
- user5
- yuks11
3 letters
- abs6
- arb6
- ark7
- ars3
- ask7
- auk8
- bar6
- bas6
- bis6
- bos6
- bra6
- bro6
- brr6
- bub10
- bud8
- bug9
- bum10
- bun8
- bur7
- bus7
- but7
- buy9
- bys8
- cub10
- cur7
- dub8
- ers3
- fub10
- fur7
- hub9
- irk7
- jus13
- kab10
- kas7
- kir7
- kob10
- kor7
- kos7
- kue8
- mus7
- nub8
- nus5
- orb6
- ors3
- our4
- pub10
- pur7
- pus7
- ras3
- reb6
- res3
- rib6
- rob6
- rub7
- rue4
- rug6
- rum7
- run5
- rut4
- sab6
- sau4
- ser3
- sib6
- sir3
- ska7
- ski7
- sky9
- sob6
- sou4
- sri3
- sub7
- sue4
- sum7
- sun5
- sup7
- suq13
- tsk7
- tub7
- uke8
- uns5
- ups7
- urb7
- urd5
- urn5
- use4
- uts4
- yuk10