1. (n.) A royal jurisdiction or domain; a region which is under the dominion of a king; a kingdom.

2. (n.) Hence, in general, province; region; country; domain; department; division; as, the realm of fancy.

ally ambit animal kingdom archduchy archdukedom area arena bailiwick beat body politic border borderland buffer state captive nation chain of being chieftaincy chieftainry circle circuit city-state class structure colony commonweal commonwealth compass confines country county demesne department dimensions discipline domain dominion duchy dukedom earldom empery empire establishment extent field free city grand duchy hemisphere hierarchy judicial circuit jurisdiction kingdom land limits mandant mandate mandated territory mandatee mandatory march mineral kingdom monarchy nation nationality natural hierarchy orb orbit pale pecking order polis polity possession power power structure precinct principality principate protectorate province puppet government puppet regime purview pyramid radius reach republic responsibility round satellite scope seneschalty settlement sovereign nation sphere state subdiscipline sultanate superpower sweep territory toparchia toparchy vegetable kingdom walk