Phrasal Verb 'Sit in'

We have 3 phrasal verb definitions related to 'Sit in'.

Sit in

Occupy a building to protest about something

Example: The students SAT IN the Library as a protest against the increase in tuition fees.

Sit in for

Take on someone's responsibilities while they are absent

Example: Her deputy's SITTING IN FOR her while she's away.

Sit in on

Attend as an observer

Example: She SAT IN ON the meeting and took notes but said nothing.