4 letters
- rain5
- rani5
- rant5
- rash6
- rath6
- rato4
- rats4
- rhos6
- rial5
- rias4
- rich9
- rins5
- riot4
- roan5
- rocs7
- roil5
- root4
- rota4
- roti4
- rotl5
- roto4
- rots4
- sack11
- sacs7
- sadi5
- sago6
- said5
- sail5
- sain5
- saki8
- sale5
- sall6
- salp8
- sals5
- salt5
- sand6
- sane5
- sang7
- sank9
- sans5
- sari4
- sash6
- sate4
- sati4
- saul6
- sawn8
- scab10
- scad8
- scag9
- scam10
- scan8
- scar7
- scat7
- scop10
- scot7
- scow10
- scut8
- seal5
- seat4
- sect7
- sent5
- seta4
- shad7
- shag8
- shah8
- sham9
- shat6
- shaw9
- shay8
- shea6
- shim9
- shin7
- ship9
- shit6
- shiv10
- shmo9
- shod7
- shoe6
- shog8
- shoo6
- shop9
- shot6
- show9
- shri6
- shul8
- shun8
- shut7
- sial5
- sice7
- sick11
- sics7
- sift7
- sigh8
- sign7
- sild6
- silk9
- sill6
- silo5
- silt5
- sima7
- sine5
- sing7
- sinh7
- sink9
- sins5
- site4
- sith6
- sits4
- skat8
- skin9
- skit8
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- slid6
- slim8
- slip8
- slit5
- slob8
- sloe5
- slog7
- slop8
- slot5
- slow8
- slut6
- smit7
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snob8
- snog7
- snot5
- snow8
- soak8
- soap7
- soar4
- sock11
- soda5
- sofa7
- soft7
- soil5
- soja13
- sola5
- sold6
- sole5
- soli5
- solo5
- sols5
- soma7
- sone5
- song7
- sons5
- sook8
- soon5
- soot4
- soph9
- sora4
- sori4
- sorn5
- sort4
- soth6
- sots4
- soul6
- sown8
- soya6
- span8
- spat7
- spic10
- spin8
- spit7
- spot7
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stir4
- stoa4
- stob7
- stop7
- stow7
- stun6
- such10
- suit5
- swan8
- swat7
- swot7
- syli7
- sync10
- tabs7
- tace7
- tach9