Available Definitions:
1) v. t. - To surrender or relinquish, as sovereign power; to withdraw definitely from filling or exercising, as a high office, station, dignity; as, to abdicate the throne, the crown, the papacy.
2) v. t. - To renounce; to relinquish; -- said of authority, a trust, duty, right, etc.
3) v. t. - To reject; to cast off.
4) v. t. - To disclaim and expel from the family, as a father his child; to disown; to disinherit.
5) v. i. - To relinquish or renounce a throne, or other high office or dignity.