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blow up

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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
  1. 1
    [intransitive/transitive] if something blows up, or if someone blows something up, it explodes and is destroyed

    Terrorists had threatened to blow up the embassy.

    The boiler blew up, wrecking the whole house.

  2. 2
    [transitive] to fill something with air or gas

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

  3. 3
    [intransitive] if a storm or strong wind blows up, it suddenly starts

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

  4. 4
    [intransitive] if a serious argument or problem blows up, it begins suddenly

    A political row has blown up over the minister's remarks.

  5. 5
    [intransitive] to suddenly become angry and shout at someone
    blow up at:

    She just blew up at me.

  6. 6
    [transitive] to make a photograph bigger

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

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