4 letters
- snip8
- snit5
- snub9
- snug8
- sons5
- sous5
- span8
- spas7
- spic10
- spin8
- spun9
- sris4
- stun6
- suba8
- subs8
- such10
- suck12
- suds6
- sues5
- sugh9
- suit5
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sups8
- suqs14
- sura5
- suss5
- swan8
- sync10
- tach9
- tain5
- tans5
- tass4
- taus5
- than7
- thin7
- this6
- thus7
- tics7
- tins5
- tuis5
- tuna6
- tuns6
- tush7
- ughs9
- ulan7
- ulna7
- unai6
- unau7
- unci9
- unco9
- unit6
- upas8
- uric8
- urns6
- ursa5
- uses5
- utas5
- vacs11
- vain9
- vans9
- vaus9
- vina9
- visa8
- wain8
- wans8
- wash9
- whin10
- wich12
- wins8
- wish9
- wiss7
- wuss8
- yins7
- yuan8
- yuca10
- yuch12
- zinc17
- zins14