The meaning of Sit-in

phrasal verb

Attend a meeting or discussion without taking an active part in it.

Usage examples:

Do you mind if i sit in?

phrasal verb

(of a group of people) occupy a place as a form of protest.

Usage examples:

Students have been sitting in this week

phrasal verb

To be present at an event without being involved

Usage examples:

Do you mind if i sit in on your class?, the vice president will sit in for the president at today’s…

noun

A situation in which a group of people protest by sitting down and refusing to leave until their complaints are dealt with

Usage examples:

A 24-hour/30-day/3 week, etc. sit-in opponents of the bill launched a 40-day, 24-hour sit-in outsid…