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English definition of “erupt”

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erupt

verb [I] uk   /ɪˈrʌpt/ us  

erupt verb [I] (VOLCANO)

C2 When a volcano erupts, it explodes and flames and rocks come out of it: Since the volcano last erupted, many houses have been built in a dangerous position on its slopes.
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erupt verb [I] (START SUDDENLY)

to start suddenly and violently: At the end of a hot summer, violence erupted in the inner cities. to suddenly express your feelings in a noisy way: The crowd erupted in applause and cheering. If spots erupt on your skin, they suddenly appear: Two days after he'd been exposed to the substance, a painful rash erupted on his neck.
eruption
noun [C or U] uk   /ɪˈrʌp.ʃən/ us  
a volcanic eruption There was a violent eruption of anti-government feeling.
(Definition of erupt from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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