countersue

/ˌkaʊntərˈsu/
verb
  1. To sue someone in response to a lawsuit filed by that person; to bring a legal claim against a plaintiff.
    • If they take you to court, you may have the right to countersue for damages.
    • The landlord countersued the tenant for unpaid rent after the tenant filed a complaint.
    • After being sued for breach of contract, the company decided to countersue for defamation.
What does "countersue" mean? | whatsthatwordmean | whatsthatwordmean