sit in
to stay inside, join in by sitting there, or protest by refusing to leave
Meanings
to take part in a protest by staying seated in a place and refusing to leave
"The students sat in outside the administration office for two days."
"We had students from all over the city sitting in at lunch counters."
— John Lewis, interview reflections on the Civil Rights Movement
to stay at home instead of going out
"It's raining, so let's just sit in tonight and watch a movie."
to join a meeting, class, or musical performance informally or temporarily
"A local guitarist sat in during the last two songs."
"Eric Clapton sat in with the band during the encore."
— Common music journalism wording; exact source not recalled
The protest sense is strongly associated with political action. In British English, 'sit in' can also mean stay at home rather than go out.
Commonly used with
Forms
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Synonyms
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