knock
Translation
to knock, to tap, to bump, to criticise
Examples
Please knock before you enter.
Please knock before you enter.
He knocked his head on the low ceiling.
He knocked his head on the low ceiling.
Don't knock it until you've tried it.
Don't knock it until you've tried it.
Grammar Patterns
((on/at sth.)) to strike a surface to attract attention. Please knock on the door.
((sth.)) ((on/against sth.)) to collide with something. He knocked his head on the ceiling.
((sth.)) to criticise something. Don't knock it until you've tried it.
Similar Words
Synonyms: tap, rap, strike, hit
Etymology
From Old English 'cnocian', of imitative origin.
Memory Tips
Think of the sound 'knock-knock' on a door. The sound itself is the word.