class-action suit is a noun meaning "a lawsuit brought by a representative member of a large group of people on behalf of all members of the group". It carries one recorded sense.
a lawsuit brought by a representative member of a large group of people on behalf of all members of the group
law
Definitions, synonyms and semantic relations for class-action suit come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.