1. A coparty who responds to a petition, such as a petition for a writ of certiorari.
2. In some states, a coparty who responds to an appeal.
3. Family law. In a divorce suit based on adultery, the person with whom the spouse is accused of having committed adultery. See RESPONDENT. [Cases: Divorce 26. C.J.S. Divorce ¡ì¡ì 60, 70.]