reagieren
Translation
to react, to respond
Examples
Er hat nicht auf meine Frage reagiert.
He didn't react to my question.
Wie hat sie darauf reagiert?
How did she react to that?
Manche Leute reagieren allergisch auf Nüsse.
Some people have an allergic reaction to nuts.
Grammar Patterns
to react ((auf+4)) to react to sth. He doesn't react to my email.
to react ((mit+3)) to react with sth. She reacted with a smile.
Similar Words
Synonyms: antworten, erwidern
Etymology
From Latin 're-' (back, again) + 'agere' (to do, act). Literally 'to act back'.
Memory Tips
Think of the English word 'react'. The prefix 're-' means 'back', so you are 'acting back' in response to something. It often pairs with the preposition 'auf' (on/to).