4 letters
- slut6
- snip8
- snit5
- snug8
- spec10
- spic10
- spin8
- spit7
- spue8
- spun9
- spur8
- step7
- stir4
- stun6
- suer5
- suet5
- suit5
- sung8
- supe8
- sure5
- tegs6
- tels5
- tens5
- tern5
- tics7
- tier4
- ties4
- tile5
- tils5
- tine5
- ting7
- tins5
- tips7
- tire4
- tirl5
- trig6
- trip7
- true5
- trug7
- tugs7
- tuis5
- tule6
- tune6
- tung8
- tuns6
- tups8
- turn6
- unci9
- unit6
- urge7
- uric8
- urns6
- user5