1. A royal jurisdiction or domain; a region which is under the dominion of a king; a kingdom.
The absolute master of realms on which the sun perpetually shone. --Motley.
2. Hence, in general, province; region; country; domain; department; division; as, the realm of fancy.
n 1: a domain in which something is dominant; "the untroubled
kingdom of reason"; "a land of make-believe"; "the rise
of the realm of cotton in the south" [syn: kingdom, land]
2: a knowledge domain that you are interested in or are
communicating about; "it was a limited domain of
discourse"; "here we enter the region of opinion"; "the
realm of the occult" [syn: domain, region]
3: the domain ruled by a king or queen [syn: kingdom]