See realm in Webster's New World Roget's A-Z Thesaurus II
noun
An area within which something or someone exists, acts, or has influence or power:
ambit, compass, extension, extent, orbit, purview, range, reach, scope, sphere, sweep, swing. See territoryA sphere of activity, experience, study, or interest:
area, arena, bailiwick, circle, department, domain, field, orbit, province, scene, subject, terrain, territory, world. (Slang) bag. See territory
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