Question 1

What does "knock on" mean?

Accepted Answer

To rap on a door or surface with the knuckles to attract attention or request entry.

Question 2

How do you use "knock on" in a sentence?

Accepted Answer

She knocked on the office door twice and waited for an answer before entering.

Question 3

Is "knock on" formal or informal?

Accepted Answer

"knock on" is register-neutral — appropriate in both casual and formal contexts. Primarily literal. 'Knock on wood' (North American) or 'touch wood' (British) is a separate fixed phrase meant to ward off bad luck. The adjective 'knock-on' (as in 'knock-on effect') is derived from the same base and means an indirect consequence. Rugby also uses 'knock-on' as a technical foul.

knock on

Verwandte Ausdrücke

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