Some of these words include:
Flak
Folk
Fork
Funk
F*ck
Fack
Flank
Flask
FleckFlick
FlockFrank Freak
Frisk Frock
Fetlock
Futhark
Fastback
Firework
Flapjack
Foredeck
Fretwork
Feedstock
Fieldwork
Firebreak
Firebrick
Firetruck
Flashback
Firetruck
Framework
Fingerpick
Fiddlestick
flak fink folk fork funk
Some words that start and end with the letter K are:kayakkickkinfolkkinkkioskknackknapsackknock
Some compound words that start with K are:keepsakekettledrumkeyboardkeychainkickoffkindheartedknickknackknockoff
Fork. be happy
8 letter words ending with K: * backpack * homework * playback * sidewalk
not really, kangaroo, killer, kiss, kick, kind, kids, kept etc
knife, knave
Check, clock, click, clack, cook, cask.
firework
flunck
Firetruck
flak fink folk fork funk
kitsch
Some words that start and end with the letter K are:kayakkickkinfolkkinkkioskknackknapsackknock
"K-ON!"
flick flock freak frock fork
Some compound words that start with K are:keepsakekettledrumkeyboardkeychainkickoffkindheartedknickknackknockoff