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English definition of “en masse”

en masse

adverb uk   /ˌɒ̃ˈmæs/ us    /ˌɑ̃ː-/
If a group of people do something en masse, they do it together and at the same time: The shop's 85 workers have resigned en masse.Acting, being or existing together
(Definition of en masse from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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