4 letters
- lunk11
- lunt7
- luny9
- lure6
- lurk10
- mini8
- miri7
- muni9
- nail6
- narc8
- nice8
- nick12
- nidi6
- nigh9
- nill7
- nils6
- nipa8
- nips8
- nisi5
- noil6
- noir5
- nori5
- null8
- nurd7
- nurl7
- pail8
- pain8
- pair7
- pang10
- pein8
- peri7
- pfui11
- pial8
- pian8
- pica10
- pice10
- pick14
- pics10
- pier7
- pigs9
- piki11
- pile8
- pili8
- pill9
- pily10
- pina8
- pine8
- ping10
- pink12
- pins8
- pint8
- piny10
- pion8
- pirn8
- plan9
- plie8
- plug11
- plum12
- plus9
- pong10
- porn8
- pour8
- prau8
- prig9
- prim10
- prog9
- puce11
- puck15
- pugh12
- pugs10
- pula9
- pule9
- puli9
- pull10
- pulp12
- puls9
- puna9
- pung11
- punk13
- puns9
- punt9
- puny11
- pure8
- puri8
- purl9
- purr8
- purs8
- pyic12
- pyin10
- quin15
- quip17
- ragi6
- rail5
- rain5
- rang7
- rani5
- rein5
- rial5
- rice7
- rich9
- rick11
- riel5
- rigs6
- rile5
- rill6
- rind6
- ring7
- rink9
- rins5
- ripe7
- rips7
- roil5
- roup8
- ruck12
- ruga7
- rugs7
- ruin6
- rule6
- ruly8
- rump11
- rune6
- rung8
- runs6
- runt6
- scup11
- sign7
- sing7
- slip8
- slug8
- slur6
- snip8
- snug8
- spic10
- spin8
- spun9
- spur8
- sung8
- ting7
- tipi7
- tirl5
- trig6
- trip7
- trug7
- tung8
- turn6
- ugly10
- ulan7
- ulna7
- unai6
- unci9
- unco9
- unit6
- upon9
- urge7
- uric8
- urns6
- virl9
- wing10
- zinc17
- zing16