react

/riˈækt/
verb
  1. To behave or feel in a particular way as a result of something that happens.
    • She didn't know how to react to the surprising news.
    • He tends to react calmly even in stressful situations.
    • The audience reacted with laughter during the comedy show.
  2. To change chemically when mixed with another substance.
    • Iron reacts with oxygen to form rust.
    • When vinegar and baking soda react, they produce bubbles.
    • The two chemicals react violently if combined directly.
  3. To respond physically to a stimulus or substance, especially in a negative way.
    • Some people react badly to bee stings.
    • The patient reacted to the medication with dizziness.
    • Her skin reacted to the new lotion with a rash.
Antonyms
What does "react" mean? | whatsthatwordmean | whatsthatwordmean