01 n. A royal jurisdiction or domain; a region which is under the dominion of a king; a kingdom.
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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.
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2.
Hence, in general, province; region; country; domain; department; division; as, the realm of fancy.