4 letters
- pins8
- plum12
- plus9
- puli9
- pull10
- puls9
- puns9
- quin15
- rill6
- rims7
- rins5
- ruin6
- rums8
- runs6
- sail5
- sain5
- sall6
- saul6
- scum11
- sell6
- semi7
- shim9
- shin7
- shul8
- shun8
- sial5
- sign7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- skim11
- skin9
- slam8
- slid6
- slim8
- slip8
- slit5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smit7
- smug10
- smut8
- snib8
- snip8
- snit5
- snub9
- snug8
- soil5
- soli5
- soul6
- spin8
- spun9
- stum8
- stun6
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- swim10
- swum11
- syli7
- till6
- tils5
- tins5
- tuis5
- tuns6
- ulan7
- ulna7
- ulus7
- umps11
- unai6
- unci9
- unit6
- urns6
- vill10
- vims11
- will9
- wins8
- yill8
- yins7
- zill15
- zins14