Pronunciation IPA (key): /ɪˈrʌpt/ Audio (US)(file) Verb Plain form erupt Third-person singular erupts Past tense erupted Past participle erupted Present participle erupting A volcano erupting. If something erupts, it violently spits out something. The volcano erupted. If something erupts, it immediately release pressure or tension. The crowd erupted in anger when the referee made a bad decision. If someone erupts, they vomit. Synonyms burst Related words eruptionWikiwand - on Seamless Wikipedia browsing. On steroids.