réagir

/ʁe.a.ʒiʁ/
1.
verbInf2nd

to react (emotionally or physically)

to respond (to an event or stimulus)

Il a très mal réagi à la nouvelle.

He reacted very badly to the news.

Synonyms:répondre, avoir une réaction
2.
verbInf2nd

to take action or intervene in response to a problem or situation

Il faut réagir vite pour limiter les dégâts.

We need to act quickly to limit the damage.

Synonyms:agir, intervenir
3.
verbInf2nd

to comment on or give feedback about something (message, document, post)

Je t'ai envoyé le dossier, peux-tu réagir dessus ?

I sent you the file—can you give some feedback on it?

Synonyms:commenter, donner son avis, répondre
réagir - French Definition & Examples