4 letters
- sift7
- sign7
- simp10
- sine5
- sing7
- sipe7
- sire4
- site4
- smit7
- smug10
- smut8
- snip8
- snit5
- snug8
- spin8
- spit7
- spue8
- spun9
- spur8
- stem7
- step7
- stir4
- stum8
- stun6
- suer5
- suet5
- suit5
- sump11
- sung8
- supe8
- sure5
- surf8
- teem7
- teen5
- tees4
- tegs6
- temp10
- tens5
- term7
- tern5
- tier4
- ties4
- time7
- tine5
- ting7
- tins5
- tips7
- tire4
- tree4
- tref7
- trig6
- trim7
- trip7
- true5
- trug7
- tugs7
- tuis5
- tump11
- tune6
- tung8
- tuns6
- tups8
- turf8
- turn6
- umps11
- unit6
- urge7
- urns6
- user5