from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A community or territory over which a sovereign rules; a kingdom.
- n. A field, sphere, or province: the realm of science. See Synonyms at field.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An abstract sphere of influence, real or imagined.
- n. The domain of a certain abstraction.
- n. A territory or state, as ruled by a specific power, and particularly those territories ruled by a king.
from the GNU version of the Collaborative International Dictionary of English
- n. A royal jurisdiction or domain; a region which is under the dominion of a king; a kingdom.
- n. Hence, in general, province; region; country; domain; department; division.
from The Century Dictionary and Cyclopedia
- n. A royal jurisdiction or extent of government; a king's dominions; a kingdom.
- n. Figuratively, a jurisdiction or domain in general; a sphere of power, influence, or operation; province; arena.
- n. In zoögeog., a prime division of the earth's surface; a faunal area of the largest extent; a zoölogical region of the first order.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a domain in which something is dominant
- n. the domain ruled by a king or queen
- n. a knowledge domain that you are interested in or are communicating about
Middle English realme, from Old French, alteration (influenced by Old French reial, royal) of Latin regimen, government, from regere, to rule.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old French reaume, realme ("kingdom"), of unclear origins. A postulated *rēgālimen, Late Latin cross of regimen with rēgālis is usually cited. (Wiktionary)