Pronunciation: /nɑk/
noun a sharp rap or blow, typically one made by knocking on a door
A1 I heard a knock on the door.
A2 She gave a gentle knock to get his attention.
B1 The knock on the window startled me.
B2 There was a loud knock coming from the basement.
C1 The knock on the door was followed by a voice asking to come in.
C2 The rhythmic knock on the table indicated impatience.
verb to strike a surface noisily to attract attention or gain entry
A1 I knock on the door before entering.
A2 She knocked on the table to get everyone's attention.
B1 The police knocked on the suspect's door to question him.
B2 He knocked on the wall to see if it was hollow.
C1 The inspector knocked on the wood to check for termites.
C2 The musician knocked on the piano keys to test their sound quality.
formal The police officer gave a firm knock on the door before announcing himself.
informal I'll just give a quick knock on their door to see if they're home.
slang I heard a loud knock at the door and knew it was my friend messing around.
figurative His words seemed to knock her confidence, but she tried to stay strong.
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