4 letters
- snap8
- snip8
- snit5
- snot5
- soap7
- soil5
- sola5
- soli5
- solo5
- soon5
- soot4
- soph9
- soth6
- soul6
- soup8
- span8
- spat7
- spin8
- spit7
- spot7
- spun9
- stoa4
- stop7
- stun6
- suit5
- tail5
- tain5
- tali5
- tans5
- taos4
- taps7
- taus5
- than7
- thin7
- thio6
- this6
- thou7
- thus7
- tils5
- tins5
- tips7
- toil5
- tola5
- tolu6
- tons5
- tool5
- toon5
- toph9
- topi7
- tops7
- tosh6
- tuis5
- tuna6
- tuns6
- tups8
- tush7
- ulan7
- ulna7
- unai6
- unit6
- unto6
- upas8
- upon9
- utas5