4 letters
- sigh8
- sign7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sith6
- skin9
- snib8
- snip8
- snit5
- snub9
- snug8
- spic10
- spin8
- spun9
- stun6
- such10
- suck12
- sugh9
- suit5
- sung8
- sunk10
- sunn7
- suns6
- surf8
- sync10
- thin7
- this6
- thus7
- tics7
- tins5
- tuis5
- tuns6
- tush7
- ughs9
- unai6
- unci9
- unco9
- unit6
- uric8
- urns6
- whin10
- wich12
- wins8
- wish9
- yins7
- yuch12
- zinc17
- zins14