Definition of blow up phrasal verb from the Oxford Advanced American Dictionary

 

blow up

 phrasal verb
phrasal verb
 
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Phrasal Verbs
  1. 1 to explode; to be destroyed by an explosion The bomb blew up. A police officer was killed when his car blew up. Thesaurusexplodeblow up go off burst erupt detonateThese are all words that can be used when something bursts apart violently, causing damage or injury.explode to burst loudly and violently, causing damage; to make something burst in this way:The jet smashed into a hillside and exploded. The bomb was exploded under controlled conditions.blow (something) up (somewhat informal) to be destroyed by an explosion; to destroy something by an explosion:A police officer was killed when her car blew up.go off (of a bomb) to explode; (of a gun) to be fired:The bomb went off in a crowded street. When used about guns, the choice of go off (instead of “be fired”) can suggest that the gun was fired by accident.burst to break open or apart, especially because of pressure from inside; to make something break in this way:A water pipe burst and flooded the kitchen.erupt (of a volcano) to throw out burning rocks and smoke; (of burning rocks and smoke) to be thrown out of a volcano:Mount St. Helens erupted in 1980.detonate (somewhat formal) (of a bomb) to explode; to make a bomb explode:Two other bombs failed to detonate.Patterns a bomb explodes/blows up/goes off/bursts/detonates a car/plane/vehicle explodes/blows up a firework/rocket explodes/goes off
  2. 2 to start suddenly and with force A storm was blowing up. A crisis has blown up over the president's latest speech.

    blow somethingup

     
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  1. 1to destroy something by an explosion The police station was blown up by terrorists. Thesaurusexplodeblow up go off burst erupt detonateThese are all words that can be used when something bursts apart violently, causing damage or injury.explode to burst loudly and violently, causing damage; to make something burst in this way:The jet smashed into a hillside and exploded. The bomb was exploded under controlled conditions.blow (something) up (somewhat informal) to be destroyed by an explosion; to destroy something by an explosion:A police officer was killed when her car blew up.go off (of a bomb) to explode; (of a gun) to be fired:The bomb went off in a crowded street. When used about guns, the choice of go off (instead of “be fired”) can suggest that the gun was fired by accident.burst to break open or apart, especially because of pressure from inside; to make something break in this way:A water pipe burst and flooded the kitchen.erupt (of a volcano) to throw out burning rocks and smoke; (of burning rocks and smoke) to be thrown out of a volcano:Mount St. Helens erupted in 1980.detonate (somewhat formal) (of a bomb) to explode; to make a bomb explode:Two other bombs failed to detonate.Patterns a bomb explodes/blows up/goes off/bursts/detonates a car/plane/vehicle explodes/blows up a firework/rocket explodes/goes off
  2. 2 to fill something with air or gas so that it becomes firm to blow up a balloon
  3. 3 to make a photograph bigger synonym enlarge, blowup
  4. 4to make something seem more important, better, worse, etc. than it really is The whole affair was blown up out of all proportion.

blow up (at somebody)

(informal)
 
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to get angry with someone synonym lose your temper I'm sorry I blew up at you. related noun blowup