4 letters
- sawn8
- scam10
- scan8
- seam7
- semi7
- sham9
- shim9
- shin7
- sial5
- sign7
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- skim11
- skin9
- slam8
- slim8
- smit7
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- soja13
- soma7
- spam10
- span8
- spin8
- swam10
- swan8
- swim10
- tain5
- tams7
- tans5
- tins5
- unai6
- vain9
- vans9
- vims11
- vina9
- visa8
- wain8
- wans8
- wins8
- yams9
- yins7
- zins14