Definition of "class-action suit" [class-action suit]

• A lawsuit brought by a representative member of a large group of people on behalf of all members of the group (noun)

WordNet. Princeton University. 2010.

• "Your May 31 editorial " Republicans for Lawsuits " suggests that Ohio's securities fraud class-action suit against Fannie Mae is unfounded."
• "It was the first class-action suit to accuse a major designer, Donna Karan International, and not just the factories it employed, of sweatshop conditions and labor violations at those factories."