step in

intervenir

Intervenir dans une situation, généralement pour aider ou faire cesser un problème.

En anglais simple : To become involved in a situation, usually to help or stop a problem.

• Someone needs to step in.
• The police stepped in before anyone got hurt.
• Will the government step in to help the company?

Comment l'utiliser : step in to do something (The referee stepped in to stop the fight.)

Synonymes : intervene, get involved

Expressions courantes : step in to help, step in immediately

remplacer

Prendre la place de quelqu’un et faire son travail pendant un certain temps.

En anglais simple : To take another person’s place and do their work for a time.

• Can you step in for me?
• A colleague stepped in when our teacher was sick.
• She is stepping in as manager this week.

Comment l'utiliser : step in for someone (Can you step in for Maya tomorrow?); step in as something (He stepped in as coach while Anna was away.)

Synonymes : fill in, stand in, substitute

Expressions courantes : step in for someone, step in temporarily