The word 'knock' has several definitions.
It would be impossible to list all phrases and sentences.
Not a complete answer but don't knock it.
2
no the first k is the silent letter in knock you read the c but you really do not need it in the word
turn the other cheek
Dangling Modifiers
acrostic
Words that connect words or phrases are called conjunctions.
knock knock knock sock of ock ock ock my clock clock clock is taping for the knock knock knock
The first 'k'.
The stillness was broken by a knock on the door. Don't knock it, until you've tried it!
There is no one word that contains all the letters. It can form phrases of no particular meaning, such as "loutish beanie."
"Break a leg!" "Best of luck!" "Fingers crossed!" "Knock on wood!"
There are four phonemes in the word "knock": /n/, /ɑ/, /k/, /k/.
There is no one-or-two word anagram, and no apt phrases. There are a number of nonsense phrases such as "enjoy magma dish."
blech
Don't open the door unless you knock first.
Knock Knock. tigger nits
He was confused whether to knock or not as he was worried about being rejected.