4 letters
- smug10
- smut8
- snag7
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- soil5
- soli5
- song7
- soul6
- spic10
- spin8
- spun9
- stum8
- stun6
- such10
- suck12
- sugh9
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- swig9
- swim10
- swum11
- syli7
- sync10
- tics7
- tils5
- ting7
- tins5
- tugs7
- tuis5
- tung8
- tuns6
- ughs9
- ugly10
- ulan7
- ulna7
- ulus7
- umps11
- unai6
- unau7
- unci9
- unco9
- unit6
- uric8
- urns6
- urus6
- vigs10
- vims11
- vugs11
- wigs9
- wing10
- wins8
- yins7
- zigs15
- zinc17
- zing16
- zins14