4 letters
- plum12
- plus9
- pois7
- poms10
- pons8
- pram10
- prau8
- prim10
- psis7
- pubs11
- puce11
- puck15
- puds9
- pugs10
- puja17
- pula9
- puli9
- puls9
- puma11
- pump14
- puna9
- pung11
- punk13
- puns9
- punt9
- puny11
- pupa11
- pups11
- puri8
- purs8
- push10
- puss8
- puts8
- pyas9
- pyic12
- pyin10
- quai14
- quin15
- quip17
- rain5
- rami7
- ramp10
- rams7
- rani5
- raps7
- rasp7
- rias4
- rims7
- rins5
- rips7
- ruin6
- rump11
- rums8
- runs6
- sack11
- sacs7
- sadi5
- said5
- sail5
- sain5
- saki8
- salp8
- same7
- samp10
- sand6
- sane5
- sang7
- sank9
- sans5
- saps7
- sari4
- sati4
- saul6
- sawn8
- scab10
- scad8
- scag9
- scam10
- scan8
- scar7
- scat7
- scop10
- scud9
- scum11
- scup11
- scut8
- seam7
- semi7
- sham9
- shim9
- shin7
- ship9
- shun8
- sial5
- sice7
- sick11
- sics7
- sign7
- sima7
- simp10
- sims7
- sine5
- sing7
- sinh7
- sink9
- sins5
- sipe7
- sips7
- skim11
- skin9
- skip11
- skua9
- slam8
- slap8
- slim8
- slip8
- slum9
- smit7
- smug10
- smut8
- snag7
- snap8
- snaw8
- snib8
- snip8
- snit5
- snub9
- snug8
- soap7
- soma7
- soup8
- spae7
- spam10
- span8
- spar7
- spas7
- spat7
- spay9
- spaz16
- spec10
- spic10
- spik11
- spin8
- spit7
- spiv11
- spud9
- spue8
- spun9
- spur8
- stum8
- stun6
- suba8
- such10
- suck12
- suit5
- sumo8
- sump11
- sums8
- sung8
- sunk10
- sunn7
- suns6
- supe8
- sups8
- sura5
- swam10
- swan8
- swap10
- swim10
- swum11
- sync10
- tain5
- tamp10
- tams7
- tans5
- taps7
- taus5
- tics7
- tins5
- tips7
- tuis5
- tump11
- tuna6
- tuns6
- tups8
- ulan7
- ulna7
- umps11
- unai6
- unau7
- unci9
- unco9
- unit6
- upas8
- upon9
- uric8
- urns6
- ursa5
- utas5
- vacs11