knocks
verbUK /nɒks/
US /nɑːks/
Hits something to make a sound.
She knocks on the door before coming in.
OTHER MEANINGS
2. Criticizes or says bad things about someone or something.
The reviewer knocks the movie for being too long.
3. Bumps into something by accident.
He knocks his cup off the table.
4. A sound made by hitting something.
There was a loud knock at the window.