noun
Legal term for a lawsuit filed by a group of people with a common claim.
その企業に対してクラスアクションが起こされた。
A class action was filed against the company.
Variant with a middle dot; less common in running text.
Native Japanese equivalent; more common in legal contexts, while クラスアクション is a direct loanword often used in news or business.
Borrowed from English 'class action'.