4 letters
- muss8
- must8
- muts8
- nill7
- nils6
- nims8
- null8
- oils5
- oily7
- pics10
- pill9
- pily10
- plum12
- plus9
- puli9
- pull10
- puls9
- pyic12
- rill6
- rims7
- rimy9
- ruly8
- rums8
- sail5
- sall6
- saul6
- scam10
- scry9
- scud9
- scum11
- scup11
- scut8
- sell6
- semi7
- shim9
- shul8
- sial5
- sice7
- sick11
- sics7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sims7
- sizy15
- skim11
- slam8
- slay7
- slid6
- slim8
- slip8
- slit5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smit7
- smug10
- smut8
- soil5
- soli5
- soul6
- spic10
- stum8
- such10
- suck12
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- swim10
- swum11
- syce9
- syli7
- sync10
- tics7
- till6
- tils5
- tuis5
- ugly10
- ulus7
- umps11
- unci9
- uric8
- vill10
- vims11
- will9
- wily10
- yams9
- yell8
- yids7
- yill8
- yins7
- yips9
- ylem10
- yuca10
- yuch12
- yuck14
- yuks11
- yule8
- yups10
- ywis9
- zill15