4 letters
- sent5
- sers4
- sets4
- sewn8
- sews7
- shes6
- shun8
- sice7
- sics7
- sign7
- sine5
- sing7
- sins5
- skeg10
- slue6
- slug8
- smug10
- snag7
- sned6
- snog7
- snub9
- snug8
- snye7
- sone5
- song7
- sons5
- sous5
- spec10
- spue8
- spun9
- stun6
- subs8
- such10
- suck12
- suds6
- sued6
- suer5
- sues5
- suet5
- sugh9
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- suqs14
- sure5
- suss5
- syce9
- sync10
- syne7
- tegs6
- tens5
- tugs7
- tune6
- tung8
- tuns6
- ughs9
- ukes9
- unbe9
- unci9
- unco9
- unde7
- urge7
- urns6
- used6
- user5
- uses5
- vugs11
- wens8
- wuss8
- yens7