4 letters
- skid9
- skim11
- skua9
- sled6
- slue6
- slum9
- smew10
- smug10
- smut8
- sned6
- soke8
- some7
- souk9
- sped8
- spud9
- spue8
- stem7
- stud6
- stum8
- suck12
- sudd7
- suds6
- sued6
- suer5
- sues5
- suet5
- sulk10
- sumo8
- sump11
- sums8
- sunk10
- supe8
- surd6
- sure5
- swum11
- syke10
- teds5
- tusk9
- udos6
- ukes9
- umps11
- unde7
- urds6
- used6
- user5
- uses5
- weds8
- yeuk11
- yuks11
- zeds14
- zeks17