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blow up  - definition and synonyms

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phrasal verb
Word Forms
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present tense
I/you/we/theyblow up
he/she/itblows up
present participleblowing up
past tenseblew up
past participleblown up

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  1. 1
    [intransitive/transitive] if something blows up, or if someone blows something up, it explodes and is destroyed
  2. 2
    [transitive] to fill something with air or gas

    We blew up lots of balloons and hung them around the room.

  3. 3
    [transitive] to make a photograph bigger

    They had blown up the picture to make a huge poster of his face.

  4. 4
    [intransitive] to suddenly become angry and shout at someone
    blow up at:

    She just blew up at me.

  5. 5
    [intransitive] if a storm or strong wind blows up, it suddenly starts

    The race had to be canceled when the storm blew up.

  6. 6
    blow up in someone’s face informal if your plans blow up in your face, they do not happen as you expected and cause a lot of problems
See also main entry: blow

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