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blow up - definition and synonyms


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phrasal verb
Word Forms
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
    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. 6
    [transitive] to make a photograph bigger
    They had blown up the picture to make a huge poster of his face.
See also main entry: blow


a course of study which is much shorter than a university course and focuses on the skills you need for a job, especially computer-related skills

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an ancient Roman system of underfloor heating, used to heat houses with hot air; from the Latin 'hypocaustum'

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