4 letters
- skee8
- skeg10
- skep11
- skew11
- skid9
- skim11
- skin9
- skip11
- skis8
- skit8
- skua9
- slim8
- slue6
- slum9
- smew10
- smit7
- smug10
- smut8
- soke8
- some7
- souk9
- spik11
- spue8
- stem7
- stum8
- suck12
- sued6
- suer5
- sues5
- suet5
- suit5
- sulk10
- sumo8
- sump11
- sums8
- sunk10
- supe8
- sure5
- swim10
- swum11
- syke10
- ties4
- tike8
- time7
- tuis5
- tusk9
- ukes9
- umps11
- used6
- user5
- uses5
- vies8
- vims11
- vise8
- wise7
- yeuk11
- yuks11
- zeks17