Class action lawsuits are legal proceedings in which a group of individuals collectively bring a claim to court, typically against a common defendant, for similar grievances or damages. These lawsuits allow individuals with shared interests to join together and pursue a case more efficiently, especially when individual claims might be too small to warrant separate legal action. This mechanism is particularly important in cases involving consumer rights, employment discrimination, and civil rights violations, as it amplifies the voices of the affected group and can lead to more significant legal remedies.