sit in

assister en observateur, assister en auditeur libre

Assister à un cours ou à une réunion comme visiteur, généralement pour observer et écouter.

En anglais simple : To attend a lesson or meeting as a visitor, usually to watch and listen.

• You're welcome to sit in today.
• She sat in on the meeting to learn about the project.
• Could we sit in on one of your lessons?

Comment l'utiliser : sit in on something (Can I sit in on your history class?)

Synonymes : observe, attend as a guest

Expressions courantes : sit in on something, sit in quietly, sit in today

faire un sit-in, organiser une occupation

Rester assis dans un lieu pour protester, souvent en refusant de partir.

En anglais simple : To stay seated in a place as a protest, often refusing to leave.

• The students sat in all night.
• Workers are sitting in at the factory until talks begin.
• They sat in outside the office to demand equal rights.

Comment l'utiliser : sit in at a place (Students sat in at the college to protest the new fees.)

Synonymes : stage a sit-in, occupy

Expressions courantes : sit in peacefully, sit in all night, sit in outside

jouer en invité

Rejoindre un groupe pour jouer avec lui lors d’un concert en tant que musicien invité.

En anglais simple : To join a band or group for a performance as a guest musician.

• Can I sit in tonight?
• He sat in with a jazz band last Friday.
• Their usual drummer was pleased to let her sit in.

Comment l'utiliser : sit in with a band (A local guitarist sat in with the band.); sit in on an instrument (She sat in on piano for the final song.)

Synonymes : guest, play as a guest

Expressions courantes : sit in with someone, sit in on drums, sit in tonight