noun

rap

rap, knock, blow, blame

I heard a sharp rap on the door.

I heard a sharp rap on the door.

She listens to rap music all the time.

She listens to rap music all the time.

He had to take the rap for the mistake.

He had to take the rap for the mistake.

He rapped on the window to get my attention.

He rapped on the window to get my attention.

a rap ((on sth.)) a knock on (sth.) There was a rap on the window.

take the rap ((for sth.)) to accept the blame for (sth.) Someone has to take the rap for the mistake.

knock: tap, knock; music: hip-hop; blame: blame, criticism

The 'knock' sense is probably imitative. The music genre comes from a slang word meaning 'to chat'.

The sound of the word 'rap' is like a quick hit. For blame, 'take the rap' is like taking the hit for someone.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.