4 letters
- plan9
- plat8
- plea8
- plus9
- puce11
- pula9
- pule9
- puls9
- puna9
- puns9
- punt9
- puts8
- qats13
- race7
- rale5
- rant5
- rase4
- rate4
- rats4
- real5
- recs7
- rent5
- rest4
- rets4
- rues5
- rule6
- rune6
- runs6
- runt6
- ruse5
- rust5
- ruts5
- sabe7
- sack11
- sacs7
- sade5
- safe7
- saga6
- sage6
- sail5
- sain5
- sake8
- sale5
- sall6
- salp8
- sals5
- salt5
- same7
- sand6
- sane5
- sang7
- sank9
- sans5
- sate4
- sati4
- saul6
- save8
- sawn8
- scab10
- scad8
- scag9
- scam10
- scan8
- scar7
- scat7
- scot7
- scud9
- scum11
- scup11
- scut8
- seal5
- seam7
- sear4
- seas4
- seat4
- secs7
- sect7
- seel5
- seen5
- self8
- sell6
- sels5
- send6
- sene5
- sent5
- sept7
- sera4
- seta4
- sets4
- sett4
- sewn8
- sext11
- shat6
- shea6
- shul8
- shun8
- shut7
- sial5
- sice7
- silt5
- sine5
- site4
- skat8
- skua9
- slab8
- slag7
- slam8
- slap8
- slat5
- slaw8
- slay7
- sled6
- slew8
- slit5
- sloe5
- slot5
- slub9
- slue6
- slug8
- slum9
- slur6
- slut6
- smut8
- snag7
- snap8
- snaw8
- sned6
- snit5
- snot5
- snub9
- snug8
- snye7
- sola5
- sole5
- sone5
- soul6
- spae7
- span8
- spat7
- spec10
- spue8
- spun9
- stab7
- stag6
- star4
- stat4
- staw7
- stay6
- stem7
- step7
- stet4
- stew7
- stey6
- stoa4
- stub8
- stud6
- stum8
- stun6
- stye6
- suba8
- such10
- suck12
- sued6
- suer5
- sues5
- suet5
- suit5
- sulk10
- sulu7
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sura5
- sure5
- swan8
- swat7
- syce9
- sync10
- syne7
- tabs7
- tabu8
- tace7
- tach9
- tack11
- taco7
- tact7
- tads5
- tael5
- tags6
- tail5
- tain5
- taka8
- take8
- tala5
- talc8
- tale5
- tali5
- talk9