knock

US /nɑːk/
UK /nɑːk/
"knock" picture
1.

to hit something (such as a door) with the knuckles of your hand or with a hard object in order to get attention

:
•
She heard a knock at the door.
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There was a loud knock on the window.
:
raptapthumpbang
2.

a blow or hit, especially one that causes damage or injury

:
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The car sustained a heavy knock to the front bumper.
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He took a nasty knock to the head during the game.
:
blowhitimpactcollision
1.

to hit something (such as a door) with the knuckles of your hand or with a hard object in order to get attention

:
•
Please knock before entering.
•
He knocked on the window to get her attention.
:
raptapthumpbang
2.

to hit something or someone, especially by accident

:
•
He accidentally knocked the vase off the table.
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The car knocked into the lamppost.
:
hitstrikebumpcollide
3.

to criticize or disparage something or someone

:
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Don't knock it until you've tried it.
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He's always knocking his competitors.
:
criticizedisparagedenigratefaultcondemn
:
knock-onknock downknock backknock aroundknock offknock overknock up