Pronunciation: (im-plēd'),[key] —v.t.,-plead•ed or -pleadPronunciation: (-pled')[key]or -pled, -plead•ing. 1. to sue in a court of law.
2. to bring (a new party) into an action because he or she is or may be liable to the impleading party for all or part of the claim against that party.
3. to accuse; impeach.
4. Archaic.to plead (a suit).