# calk # candlestick # candlewick # carsick # cask
# caulk # chalk # check # cheek
# chick # chink # chinook # chock # chock-a-block # chook # chuck # chunk
# clack # clank # clerk
# click # clink
# cloak
# clock # clonk
# clunk # cock # conk # copeck
# cook # cork
# crack
# crank # creak
# crick # croak
# crock # crook # cross-check # crosstalk # crosswalk # cutback
The silent letter is K. k-n-o-t is pronounced not.
kick
One describing word (or adjective) is the word kinky.
The Greek word Kyrios means lord or master.
If there is an "ih" "or "ee" vowel sound (i, e, or y) at the start of the word, it will start with a K and not a C. When a C is followed by an I, E, or Y, it usually takes on an "S" sound. (City, celery, cyan.) So the "K" sound of the letter C is exclusive to words beginning with C and followed by the vowels A, O, or U or blended as CL or CR. (Cat, Cot, Cut, Class, Crass) The digraph CH has an entirely distinct sound of its own.
Kinetic and kleptomaniac begin with the letter k. They end with the letter c.
Fork.
knapsacks
keynote
mcdonalds
broomstick
outlook, oarlock
Some words beginning with P and ending with K:PackPaddockPadlockPaintworkPaperbackPaperworkParkPartookPassbookPassmarkPatchworkPaybackPaycheckPeacockPeakPebrookPeckPeekPerkPickPickabackPickwickPieceworkPiggybackPillockPinkPinprickPipeworkPipsqueakPitchforkPlacekickPlanckPlankPlasterworkPlaybackPlaybookPlonkPluckPlunkPockPocketbookPockmarkPollackPollockPoppycockPorkPostmarkPothookPotluckPrankPreshrankPreshrinkPreshrunkPresoakPrickPuckPullbackPunk
Kilmarnock
keenkinkingpin
Backpack Bankbook Bareback Basilisk Beadwork Bodywork Bookmark
Not in any dictionary I tried (two of which contain over 250,000 words each).