4 letters
- kiss8
- knop12
- knur10
- kois8
- kops11
- kors8
- koss8
- kris8
- lino6
- lins6
- lion6
- lips8
- lisp8
- loin6
- loof8
- loon6
- loop8
- loos5
- lops8
- lorn6
- loss5
- loup9
- lour6
- mirs7
- miso7
- miss7
- mono8
- mons8
- moon8
- moor7
- moos7
- mops10
- morn8
- mors7
- moss7
- muni9
- muns9
- muon9
- muss8
- naif8
- naoi5
- naos5
- naps8
- neif8
- ness5
- nibs8
- nils6
- nims8
- nipa8
- nips8
- nisi5
- nits5
- nobs8
- nodi6
- nods6
- noes5
- nogs7
- noil6
- noir5
- nolo6
- noms8
- nook9
- noon6
- nope8
- nori5
- norm8
- nose5
- nosh7
- nosy7
- noun7
- nous6
- nows8
- nubs9
- nuns7
- nurd7
- nurl7
- nuts6
- oafs7
- oars4
- obis7
- odor5
- offs10
- oils5
- oink9
- olio5
- ones5
- onto5
- onus6
- oohs6
- oops7
- oots4
- open8
- opes7
- opts7
- opus8
- orbs7
- orcs7
- ordo5
- ores4
- orts4
- orzo13
- osar4
- oses4
- ossa4
- ouds6
- ouph10
- ours5
- oust5
- outs5
- ouzo14
- owns8
- pain8
- pair7
- pans8
- pars7
- pass7
- pein8
- pens8
- peon8
- peri7
- peso7
- pfui11
- phis9
- phon10
- pian8
- pias7
- pics10
- pier7
- pies7
- pigs9
- pina8
- pine8
- ping10
- pink12
- pins8
- pint8
- piny10
- pion8
- pips10
- pirn8
- pish9
- piso7
- piss7
- pits7
- plus9
- poco10
- pods8
- pois7
- polo8
- pols8
- poms10
- pond9
- pone8
- pong10
- pons8
- pony10
- pood8
- poof10
- pooh9
- pool8
- poon8
- poop10
- poor7
- pops10
- pore7
- pork11
- porn8
- port7
- pose7
- posh9
- post7
- posy9
- pots7
- pouf11
- pour8
- pout8
- pows10
- prao7
- prau8
- prig9
- prim10
- proa7
- prod8
- prof10
- prog9
- prom10
- prop10
- pros7
- prow10
- psis7
- psst7
- pubs11
- puds9
- puff14
- pugs10
- puli9
- puls9
- puna9
- pung11
- punk13