IPA: /ˈkaʊntərˌsuːt/
KK: /ˈkaʊntərˌsuːt/
A legal case that someone brings against another person who has already taken legal action against them.
After being sued for breach of contract, the company decided to file a countersuit for damages.
Countersuit → It is formed from "counter-" (meaning against) and "suit" (from Old French *suit*, meaning a legal proceeding or action). The word "countersuit" refers to a legal action taken against someone who has already initiated a lawsuit, hence an action against a legal proceeding.
Think of 'counter-' meaning against, and 'suit' referring to a legal action. This helps you remember that a countersuit is an action taken against someone else's legal claim.