n. Supreme power wielded by a single person; absolute personal authority.n. The principle of government by a monarch; the monarchical system.n. A government in which the supreme power is either actually or nominally lodged in the hands of a monarch or sole ruler, who holds his position for life, generally with hereditary succession.n. The territory ruled over by a monarch; a kingdom; an empire.n. In theology, the doctrine that there is in the Godhead only one principle (ἀρχή), cause (αἰτία), source or fountain (πηγή) of deity, namely God the Father, from whom the Son and the Holy Ghost derive their divinity. Also monorchia.