4 letters
- amus8
- bams10
- bubs11
- buds9
- bugs10
- bumf14
- bump14
- bums11
- buns9
- burs8
- bush10
- busk12
- buss8
- bust8
- busy10
- buts8
- buys10
- cubs11
- dubs9
- dumb12
- emus8
- fubs11
- gums10
- hubs10
- hums10
- lums9
- mibs10
- mobs10
- muds9
- mugs10
- mums11
- muns9
- muse8
- mush10
- musk12
- muss8
- must8
- muts8
- nubs9
- numb12
- pubs11
- rubs8
- rums8
- scum11
- slub9
- slum9
- smug10
- smut8
- snub9
- stub8
- stum8
- suba8
- subs8
- sumo8
- sump11
- sums8
- swum11
- tubs8
- umbo11
- umps11
- urbs8
3 letters
- abs6
- amu7
- bam9
- bas6
- bis6
- bos6
- bub10
- bud8
- bug9
- bum10
- bun8
- bur7
- bus7
- but7
- buy9
- bys8
- cub10
- cum10
- dub8
- ems6
- emu7
- fub10
- gum9
- hub9
- hum9
- ism6
- jus13
- lum8
- mas6
- mib9
- mis6
- mob9
- mos6
- mud8
- mug9
- mum10
- mun8
- mus7
- mut7
- nub8
- nus5
- oms6
- pub10
- pus7
- rub7
- rum7
- sab6
- sau4
- sib6
- sim6
- sob6
- som6
- sou4
- sub7
- sue4
- sum7
- sun5
- sup7
- suq13
- tub7
- umm10
- ump10
- uns5
- ups7
- urb7
- use4
- uts4
- yum9