4 letters
- maul9
- maun9
- maut8
- maws10
- mays9
- meal8
- mels8
- mesa7
- mibs10
- mils8
- moas7
- mobs10
- mola8
- mols8
- muds9
- mugs10
- mule9
- mull10
- mums11
- muns9
- mura8
- muse8
- mush10
- musk12
- muss8
- must8
- muts8
- nabs8
- nubs9
- numb12
- palm11
- pals8
- pams10
- plum12
- plus9
- pubs11
- pula9
- puls9
- puma11
- rams7
- rubs8
- rums8
- sabe7
- sabs7
- sail5
- sale5
- sall6
- salp8
- sals5
- salt5
- same7
- samp10
- saul6
- scab10
- scam10
- scum11
- seal5
- seam7
- sham9
- shul8
- sial5
- sima7
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slim8
- slob8
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smug10
- smut8
- snub9
- sola5
- soma7
- soul6
- spam10
- stab7
- stub8
- stum8
- suba8
- subs8
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sura5
- swab10
- swam10
- swum11
- tabs7
- tabu8
- tams7
- taus5
- tuba8
- tubs8
- ulan7
- ulna7
- ulus7
- ulva10
- umbo11
- umps11
- upas8
- urbs8
- ursa5
- utas5
- vaus9
- wabs10
- waul9
- yams9