4 letters
- pili8
- pina8
- pine8
- ping10
- pink12
- pins8
- pint8
- piny10
- pion8
- pirn8
- pish9
- pith9
- plug11
- pong10
- porn8
- pour8
- prau8
- prig9
- prim10
- prog9
- puce11
- puck15
- pugh12
- pugs10
- puli9
- puna9
- pung11
- punk13
- puns9
- punt9
- puny11
- pure8
- puri8
- purl9
- purr8
- purs8
- push10
- pyic12
- pyin10
- quin15
- quip17
- ragi6
- rain5
- rang7
- rani5
- rein5
- rhus7
- rice7
- rich9
- rick11
- rigs6
- rind6
- ring7
- rink9
- rins5
- ripe7
- rips7
- roup8
- ruck12
- ruer5
- ruga7
- rugs7
- ruin6
- rump11
- rune6
- rung8
- runs6
- runt6
- rush7
- ruth7
- scup11
- shin7
- ship9
- shri6
- shun8
- sigh8
- sign7
- sing7
- sinh7
- snip8
- snug8
- spic10
- spin8
- spun9
- spur8
- such10
- sugh9
- sung8
- thin7
- thir6
- thru7
- thug9
- ting7
- tipi7
- trig6
- trip7
- trug7
- tung8
- turn6
- ughs9
- unai6
- unci9
- unco9
- unit6
- upon9
- urge7
- uric8
- urns6
- vugh13
- whig11
- whin10
- whip12
- whir9
- wich12
- wing10
- yirr6
- yuch12
- zinc17
- zing16