4 letters
- pend9
- pens8
- pian8
- pias7
- pina8
- pins8
- plan9
- plus9
- pods8
- pond9
- pons8
- prau8
- pubs11
- puds9
- pugs10
- puja17
- pula9
- puls9
- puma11
- puna9
- pung11
- punk13
- puns9
- punt9
- puny11
- pupa11
- pups11
- purs8
- push10
- puss8
- puts8
- pyas9
- quad15
- rads5
- rand6
- raps7
- rasp7
- runs6
- sade5
- sadi5
- saga6
- said5
- sain5
- salp8
- samp10
- sand6
- sane5
- sang7
- sank9
- sans5
- saps7
- sard5
- saul6
- sawn8
- scad8
- scan8
- scud9
- scup11
- send6
- shad7
- shun8
- skua9
- slap8
- snag7
- snap8
- snaw8
- sned6
- snip8
- snub9
- snug8
- soap7
- soda5
- soup8
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- sped8
- spin8
- spud9
- spue8
- spun9
- spur8
- stud6
- stun6
- suba8
- sudd7
- suds6
- sued6
- sump11
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sura5
- surd6
- swan8
- swap10
- tads5
- tans5
- tapa7
- taps7
- taus5
- tuna6
- tuns6
- tups8
- udos6
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unde7
- undo7
- undy9
- upas8
- updo9
- upon9
- urds6
- urns6
- ursa5
- used6
- utas5
- vans9
- vasa8
- vaus9
- wads8
- wand9
- wans8
- waps10
- wasp10
- yaps9
- yaud8
- yaup10
- yuan8
- yups10
- zaps16