4 letters
- stir4
- stoa4
- stob7
- stub8
- suba8
- suit5
- swab10
- swat7
- tabs7
- tabu8
- tads5
- tags6
- tail5
- tain5
- tali5
- tams7
- tans5
- taos4
- taps7
- tars4
- task8
- tass4
- tats4
- taus5
- tavs8
- taws7
- taxi11
- teas4
- this6
- tics7
- ties4
- tils5
- tins5
- tips7
- tits4
- tsar4
- tuba8
- tubs8
- tuis5
- twas7
- utas5
- vast8
- vats8
- visa8
- vita8
- wabs10
- wait7
- wast7
- wats7
- wist7
- wits7
- zits13