Meaning of the word knocking in English

What does knocking mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

knocking

US /ˈnɑkɪŋ/
UK /ˈnɒkɪŋ/

Noun

the action or sound of striking something, especially a door, to attract attention

Example:
There was a loud knocking at the door.
The constant knocking on the pipes was annoying.

Adjective

criticizing or finding fault with something or someone

Example:
He's always knocking other people's ideas.
There's no point in knocking the new policy before we've even tried it.