Meaning of “class action” in the English Dictionary

american-english dictionary

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

"class action" in American English

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class actionnoun [ C/U ]

us /ˈklæs ˈæk·ʃən/

law legal action for the benefit of a large group of people claiming to have suffered similar harm

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

"class action" in Business English

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class actionnoun [ C ]

uk us LAW

a legal action that is organized by a group of people who all have the same legal problem:

She is one of about 100 women whose claims of discrimination led the U.S. District Court to expand the California case to a nationwide class action.
a class-action suit/lawsuit A class-action suit against the company describes its sales methods as "inherently abusive."

(Definition of “class action” from the Cambridge Business English Dictionary © Cambridge University Press)