4 letters
- scam10
- scan8
- scat7
- scum11
- scut8
- seal5
- seam7
- seat4
- semi7
- sent5
- seta4
- sett4
- sham9
- shat6
- shim9
- shin7
- shit6
- shiv10
- shul8
- shun8
- shut7
- sial5
- sift7
- sign7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- site4
- sith6
- sits4
- skat8
- skim11
- skin9
- skit8
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slid6
- slim8
- slip8
- slit5
- slot5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smit7
- smug10
- smut8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snot5
- snub9
- snug8
- soil5
- sola5
- soli5
- soma7
- soul6
- spam10
- span8
- spat7
- spin8
- spit7
- spiv11
- spun9
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stem7
- stet4
- stir4
- stoa4
- stub8
- stud6
- stum8
- stun6
- suba8
- suet5
- suit5
- sulk10
- sulu7
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- sura5
- swam10
- swan8
- swat7
- swim10
- swum11
- syli7
- tabs7
- tabu8
- tact7
- tads5
- tael5
- tags6
- tail5
- tain5
- tala5
- talc8
- tale5
- tali5
- talk9
- tall6
- tame7
- tamp10
- tams7
- tang7
- tank9
- tans5
- taos4
- taps7
- tarn5
- tars4
- tart4
- task8
- tass4
- tate4
- tats4
- taus5
- taut5
- tavs8
- taws7
- taxi11
- teal5
- team7
- teas4
- teat4
- tela5
- tels5
- tens5
- tent5
- test4
- tets4
- than7
- that6
- thin7
- this6
- thus7
- tics7
- ties4
- tiki8
- tile5
- till6
- tils5
- tilt5
- time7
- tine5
- ting7
- tins5
- tint5
- tiny7
- tipi7
- tips7
- tirl5
- titi4
- tits4
- tivy10
- toil5
- toit4
- tola5
- tolu6
- toms7
- tons5
- tost4
- tots4
- tout5
- tram7
- trim7
- tsar4