Given the task definition and input, reply with output. In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.

A class action , class suit , or representative action is a type of lawsuit .

A class action , also known as a class action lawsuit , class suit , or representative action , is a type of lawsuit where one of the parties is a group of people who are represented collectively by a member of that group .