4 letters
- fano8
- fans8
- faro7
- fart7
- fash9
- fast7
- fate7
- fats7
- fays9
- feat7
- feck14
- feta7
- fets7
- fiat7
- fibs10
- fico10
- fisc10
- fist7
- fits7
- flab11
- flak12
- flat8
- floc11
- foal8
- foam10
- fobs10
- foci10
- foes7
- fogs9
- folk12
- fons8
- font8
- foot7
- fops10
- fora7
- forb10
- fork11
- fort7
- foss7
- foys9
- frat7
- fubs11
- fuck15
- gabs9
- gast6
- gats6
- goas6
- goat6
- gobs9
- hack13
- haft9
- hast6
- hats6
- hobs9
- hock13
- host6
- hots6
- ikat8
- iota4
- isba7
- jabs16
- jack20
- jato13
- jobs16
- jock20
- jota13
- jots13
- kaas8
- kabs11
- kaes8
- kafs11
- kaif11
- kaon9
- kart8
- kata8
- kats8
- kayo10
- kays10
- kbar11
- keas8
- kefs11
- keto8
- khaf13
- khat10
- kifs11
- kist8
- kits8
- knob12
- knot9
- koan9
- koas8
- kobo11
- kobs11
- kois8
- kola9
- kops11
- kors8
- koss8
- koto8
- kvas12
- kyat10
- labs8
- lack12
- lacs8
- last5
- lats5
- loaf8
- lobs8
- loca8
- lock12
- loft8
- lost5
- lota5
- lots5
- mack14
- macs10
- mako11
- mask11
- mast7
- mats7
- moas7
- moat7
- mobs10
- mock14
- mocs10
- mosk11
- most7
- mots7
- nabs8
- naos5
- nobs8
- nock12
- nota5
- oafs7
- oaks8
- oars4
- oast4
- oath6
- oats4
- obes7
- obia7
- obis7
- obit7
- ocas7
- ofay9
- offs10
- okas8
- okay10
- okes8
- okra8
- oots4
- opts7
- orbs7
- orca7
- orcs7
- orts4
- osar4
- ossa4
- otic7
- oust5
- outs5
- pack14
- pacs10
- pact10
- past7
- pats7
- pock14
- post7
- pots7
- qats13
- rack11
- raft7
- rato4
- rats4
- robs7
- rock11
- rocs7
- rota4
- rots4
- sabe7
- sabs7
- sack11
- sacs7
- safe7
- sago6
- sake8
- saki8
- salt5
- sank9
- sark8
- sate4
- sati4
- scab10
- scad8
- scag9
- scam10
- scan8
- scar7
- scat7
- scop10