knock meaning
EN
[nɒk] [-ɒk] [nɑk] 
US WKnock
- Knock may refer to:
- NounPLknocksSUF-ock
- An abrupt rapping sound, as from an impact of a hard object against wood.
- I heard a knock on my door.
- An impact.
- He took a knock on the head.
- (figuratively) criticism.
- (cricket) a batsman's innings.
- He played a slow but sure knock of 35.
- (automotive) Preignition, a type of abnormal combustion occurring in spark ignition engines caused by self-ignition or the characteristic knocking sound associated with it.
- An abrupt rapping sound, as from an impact of a hard object against wood.
- VerbSGknocksPRknockingPT, PPknocked
- (intransitive) To rap one's knuckles against something, especially wood.
- Knock on the door and find out if they're home.
- (transitive, dated) To strike for admittance; to rap upon, as a door.
- (transitive, intransitive, dated) To bump or impact.
- I knocked against the table and bruised my leg.
- I accidentally knocked my drink off the bar.
- (colloquial) To denigrate, undervalue.
- Don't knock it until you've tried it.
- (soccer) To pass, kick a ball towards another player.
- Despite enjoying more than their fair share of possession the visitors did not look like creating anything, with their lack of a killer ball painfully obvious as they harmlessly knocked the ball around outside the home side's box without ever looking like they would hurt them.
- (slang, dated, Britain) To impress strongly or forcibly; to astonish; to move to admiration or applause.
- (intransitive) To rap one's knuckles against something, especially wood.
- More Examples
- Used in the Middle of Sentence
- The boxer knocked out his opponent in the third round.
- The champ was knocked unconscious and counted out in the third round.
- All the original ideas we had were knocked into a cocked hat by the latest survey.
- Used in the Beginning of Sentence
- knocked the man down, and he ran into the woods, leaving his fire-stick on the ground.
- Used in the Middle of Sentence
Definition of knock in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Verbs
- Intransitive verbs
- Transitive verbs
- Intransitive verbs
- Nouns
Source: Wiktionary
Grammatically, this word "knock" is a noun, more specifically, a countable noun. It's also a verb, more specifically, an intransitive verb and a transitive verb.