1. knock - Noun
2. knock - Verb
3. Knock - Proper noun
To drive or be driven against something; to strike against something; to clash; as, one heavy body knocks against another.
To strike or beat with something hard or heavy; to rap; as, to knock with a club; to knock on the door.
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.
To strike for admittance; to rap upon, as a door.
A blow; a stroke with something hard or heavy; a jar.
A stroke, as on a door for admittance; a rap.
Source: Webster's dictionaryYou'll never have a quiet world till you knock the patriotism out of the human race. George Bernard Shaw
Perseverance is a great element of success. If you only knock long enough and loud enough at the gate, you are sure to wake up somebody. Henry Wadsworth Longfellow
Don't knock masturbation. It's sex with someone you love. Woody Allen
They use a wedge to knock out a wedge. Russian Proverb
To protest and knock one's head against the wall is what everybody can do. Italian Proverb
You must knock a long while against an alder-bush before you get a swarm of bees out of it. Danish Proverb