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react

USree-AKT/ɹiːˈækt/

Verbreacts, reacting, reacted

Noun pluralreacts

7 meanings of react

Practice

  1. 1
    verbintransitive
    To do something because of something that just happened.

    Like jumping when something suddenly surprises you.

    How did you react when you heard the news?

    She reacted quickly to the loud warning.

    Similarrespond

    Note
  2. 2
    verbintransitive
    To change into something new when two chemicals come together.

    Like mixing vinegar and baking soda to make fizzing bubbles.

    Acids react strongly with many metals.

    The two gases reacted to form water.

    Similarcombine

    Note
  3. 3
    verbintransitive
    To tap a small icon showing how you feel about a message online.

    Like giving a thumbs-up to show you liked something.

    Lots of people reacted to her photo with hearts.

    You can react to any message with an emoji.

    Similarrespond

    Note
  4. 4
    verbtransitive
    To make one chemical mix and change with another.

    Like mixing two paints together to make a brand-new color.

    Chemists react acids with bases to make salts.

    She reacted the metal with acid during the lesson.

    Note
  5. 5
    verbintransitive
    To push back against another thing with an equal force.

    Like a trampoline pushing you back up when you jump on it.

    When you push a wall, it reacts by pushing back.

    Hard surfaces react against the things that press on them.

    Note
  6. 6
    nouncountable
    A small emoji you tap on a post to show how you feel about it.

    Like a sticker you put on a message to show your feelings.

    She left a laughing react on his comment.

    His joke got hundreds of reacts in an hour.

    Similarreaction

    Note

Less common meaning

  1. 7
    verbarchaictransitive
    To act out or perform something all over again.

    Like performing the same play a second time.

    The actors reacted the famous battle for the crowd.

    It is somewhat extraordinary, that the offence for which James II, was expelled, that of setting up power by assumption, should be re-acted, under another shape and form, by the parliament that expelled him.
    1791, Thomas Paine, Rights of ManHere, re-acted means done or carried out again.
    Note

Practice

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Origin

Made from re- (meaning 'back' or 'again') plus 'act'.