4 letters
- skit8
- skua9
- slim8
- slue6
- slum9
- smew10
- smit7
- smug10
- smut8
- sned6
- snib8
- snip8
- snit5
- snub9
- snug8
- snye7
- soke8
- some7
- sone5
- sons5
- souk9
- sous5
- spik11
- spin8
- spue8
- spun9
- sris4
- stem7
- stum8
- stun6
- subs8
- suck12
- suds6
- sued6
- suer5
- sues5
- suet5
- suit5
- sulk10
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- suqs14
- sure5
- suss5
- swim10
- swum11
- syke10
- syne7
- tens5
- ties4
- tike8
- time7
- tine5
- tins5
- tsks8
- tuis5
- tune6
- tuns6
- tusk9
- ukes9
- umps11
- unai6
- unbe9
- unci9
- unde7
- unit6
- urns6
- used6
- user5
- uses5
- vein9
- vies8
- vims11
- vine9
- vise8
- wens8
- wine8
- wink12
- wins8
- wise7
- wiss7
- wuss8
- yens7
- yeuk11
- yins7
- yuks11
- zein14
- zeks17
- zins14