knock

US /nɑk/

UK /nɒk/

A2
n.NounBad experience that reduces a person's confidence
I got quite a knock when they told me I wasn’t working so hard
v.t.Transitive VerbTo criticize someone in an unreasonable way
Look, don’t knock Dave, he’s doing his best to help everyone
v.t.Transitive VerbTo hit something to get people's attention
I will knock on your door at exactly 7:00 p.m.
v.t.Transitive VerbTo strike something hard, causing damage
Today we will knock down the oldest building in the campus
n.NounAction of something solid hitting something hard
A knock was heard on the door downstairs

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