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Knock on Meaning in English

expression

ˈnɑk/ /ˈɑn/, /ˈɔn
NAHK-on
nˈɒk/ /ˈɒn
NOK-on

Definition

To hit a door or other surface with your hand or something hard to get someone's attention or to ask for entry.

Usage & Nuances

Usually used for doors. Typical phrase: 'knock on the door.' Common mistake: don't say 'knock the door' (which may mean to hit it so hard it breaks). Also used metaphorically ('knock on wood' is separate, unrelated idiom).

Example Sentences

Please knock on the door before entering.

basic

She heard someone knock on the window.

basic

If you need help, just knock on my office door.

basic

I didn't want to knock on his door so late at night.

natural

People sometimes knock on their neighbors' doors to borrow something.

natural

I heard someone knock on the wall next door last night.

natural