4 letters
- sine5
- sing7
- sinh7
- sink9
- sins5
- sips7
- sirs4
- sits4
- skin9
- skis8
- slug8
- smug10
- snag7
- snib8
- snip8
- snit5
- snog7
- snub9
- snug8
- song7
- sons5
- sous5
- spin8
- spun9
- sris4
- stun6
- subs8
- suds6
- sues5
- sugh9
- suit5
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- surf8
- suss5
- swig9
- tiff10
- ting7
- tins5
- tuff11
- tugs7
- tuis5
- tung8
- tuns6
- ughs9
- unai6
- unci9
- unit6
- urns6
- uses5
- vigs10
- vugs11
- wigs9
- wing10
- wins8
- wiss7
- wuss8
- yins7
- zigs15
- zing16
- zins14