Nock vs. Knock: What's the Difference?

Nock and Knock Definitions
Nock
The groove at either end of a bow for holding the bowstring.
Knock
To strike with a hard blow
Knocked him on the head.
Nock
The notch in the end of an arrow that fits on the bowstring.
Knock
To affect in a specified way by striking hard
Knocked the mugger senseless.
Nock
To put a nock in (a bow or arrow).
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Knock
To cause to be displaced or unengaged; force
A wind that knocked the tower over.
A blunder that knocked him out of the job.
Nock
To fit (an arrow) to a bowstring.
Knock
To cause to collide
I knocked my head on a low beam.
Nock
Either of the two grooves in a bow that hold the bowstring.
Knock
To produce by hitting or striking
Knocked a hole in the wall.
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Nock
(archery) The notch at the rear of an arrow that fits on the bowstring.
Knock
(Informal) To find fault with; criticize
Don't knock the food.
It's free.
Nock
(nautical) The upper fore corner of a boom sail or trysail.
Knock
To strike a sharp audible blow or series of blows, as on a door.
Nock
(transitive) To fit an arrow against the bowstring of a bow or crossbow. pos=verb.}}
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Knock
To collide with something
Knocked into the table.
Nock
(transitive) To cut a nock in (usually in an arrow's base or the tips of a bow).
Knock
To make a pounding or clanking noise
The car engine is knocking.
Nock
A notch.
He took his arrow by the nock.
Knock
An instance of striking or colliding.
Nock
The upper fore corner of a boom sail or of a trysail.
Knock
The sound of a sharp blow on a hard surface.
Nock
To notch; to fit to the string, as an arrow; to string, as a bow.
Knock
A pounding or clanking noise made by an engine, often as a result of faulty fuel combustion. Also called ping.
Nock
Make small marks into the surface of;
Score the clay before firing it
Knock
(Slang) A cutting, often petty criticism.
Knock
An abrupt rapping sound, as from an impact of a hard object against wood.
I heard a knock on my door.
Knock
A sharp impact.
He took a knock on the head.
Knock
(figuratively) A criticism.
Knock
(figuratively) A blow or setback.
Knock
Preignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition; also, the characteristic knocking sound associated with it.
Knock
(cricket) A batsman's innings.
He played a slow but sure knock of 35.
Knock
Synonym of hunger knock
Knock
To strike for admittance; to rap upon, as a door.
Knock
To criticize verbally; to denigrate; to undervalue.
Don’t knock it until you’ve tried it.
Knock
To kick a ball towards another player; to pass.
Knock
To impress forcibly or strongly; to astonish; to move to admiration or applause.
Knock
To bump or impact.
I knocked against the table and bruised my leg.
I accidentally knocked my drink off the bar.
Knock
(intransitive) To rap one's knuckles against something, especially wood.
Knock on the door and find out if they’re home.
Knock
To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.
Knock
To strike or beat with something hard or heavy; to rap; as, to knock with a club; to knock on the door.
For harbor at a thousand doors they knocked.
Seek, and ye shall find; knock, and it shall be opened unto you.
Knock
To practice evil speaking or fault-finding; to criticize habitually or captiously.
Knock
To strike with something hard or heavy; to move by striking; to drive (a thing) against something; as, to knock a ball with a bat; to knock the head against a post; to knock a lamp off the table.
When heroes knock their knotty heads together.
Knock
To strike for admittance; to rap upon, as a door.
Master, knock the door hard.
Knock
To impress strongly or forcibly; to astonish; to move to admiration or applause.
Knock
To criticise; to find fault with; to disparage.
Knock
A blow; a stroke with something hard or heavy; a jar.
Knock
A stroke, as on a door for admittance; a rap.
A loud cry or some great knock.
Knock
The sound of knocking (as on a door or in an engine or bearing);
The knocking grew louder
Knock
Negative criticism
Knock
A vigorous blow;
The sudden knock floored him
He took a bash right in his face
He got a bang on the head
Knock
A bad experience;
The school of hard knocks
Knock
The act of hitting vigorously;
He gave the table a whack
Knock
Deliver a sharp blow or push :
He knocked the glass clear across the room
Knock
Rap with the knuckles;
Knock on the door
Knock
Knock against with force or violence;
My car bumped into the tree
Knock
Make light, repeated taps on a surface;
He was tapping his fingers on the table impatiently
Knock
Sound like a car engine that is firing too early;
The car pinged when I put in low-octane gasoline
The car pinked when the ignition was too far retarded
Knock
Find fault with; express criticism of; point out real or perceived flaws;
The paper criticized the new movie
Don't knock the food--it's free