4 letters
- sins5
- sips7
- sirs4
- sith6
- sits4
- skin9
- skis8
- slug8
- smug10
- snag7
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- song7
- sons5
- sous5
- spin8
- spun9
- sris4
- stun6
- subs8
- such10
- suds6
- sues5
- sugh9
- suit5
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- suss5
- swig9
- thin7
- this6
- thug9
- thus7
- ting7
- tins5
- tugs7
- tuis5
- tung8
- tuns6
- tush7
- ughs9
- unai6
- unci9
- unit6
- urns6
- uses5
- vigs10
- vugh13
- vugs11
- whig11
- whin10
- wigs9
- wing10
- wins8
- wish9
- wiss7
- wuss8
- yins7
- zigs15
- zing16
- zins14