Meaning of “erupt” in the English Dictionary

"erupt" in British English

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eruptverb [ I ]

uk /ɪˈrʌpt/ us /ɪˈrʌpt/

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.

More examples

  • Inner-city riots erupted when a local man was shot by police.
  • Violence erupted in the city on Friday night.
  • A big diplomatic row erupted as a result.
  • Spontaneous demonstrations erupt almost daily.
  • A legal fight has erupted between two of the world's largest oil companies.
eruption
noun [ C or U ] uk /ɪˈrʌp.ʃən/ us /ɪˈrʌp.ʃən/

a volcanic eruption
There was a violent eruption of anti-government feeling.

(Definition of “erupt” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"erupt" in American English

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eruptverb [ I ]

us /ɪˈrʌpt/

to burst out suddenly or explode:

The crowd erupted in cheers.
The building erupted in flames when the plane struck it.

earth science If a volcano (= type of mountain) erupts, it begins to throw out hot rocks and burning substances.

eruption
noun [ C ] us /ɪˈrʌp·ʃən/

(Definition of “erupt” from the Cambridge Academic Content Dictionary © Cambridge University Press)