4 letters
- sigh8
- sign7
- silt5
- sing7
- sinh7
- sith6
- slip8
- slit5
- snip8
- snit5
- spin8
- spit7
- tail5
- tain5
- tali5
- tang7
- than7
- then7
- thin7
- thio6
- thir6
- this6
- thug9
- tiki8
- tile5
- till6
- tils5
- tilt5
- tine5
- ting7
- tins5
- tint5
- tiny7
- tipi7
- tips7
- tirl5
- titi4
- toil5
- tong7
- toph9
- topi7
- trig6
- trip7
- tung8
- twig9
- twin8
- tyin7
- unit6
- whig11
- whin10
- whip12
- whit9
- wilt8
- wing10
- with9
- zing16
- ziti13