| Noun | 1. | class action - a lawsuit brought by a representative member of a large group of people on behalf of all members of the groupcase, causa, lawsuit, suit, cause - a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy; "the family brought suit against the landlord" jurisprudence, law - the collection of rules imposed by authority; "civilization presupposes respect for the law"; "the great problem for jurisprudence to allow freedom while enforcing order" | |