n.领域；n.国度
Merriam-Webster Online Dictionary
realm (noun)1.
- kingdom
2.
- sphere domain within the realm of possibility
3.
a primary marine or terrestrial biogeographic division of the earth's surface
Merriam-Webster Online Thesaurus
realm (noun)1.
a region of activity, knowledge, or influence
SYNONYMS:
area, arena, bailiwick, barony, business, circle, demesne, department, discipline, domain, element, fief, fiefdom, firmament, front, game, kingdom, line, precinct, province, realm, specialty, sphere, terrain, walkRELATED WORDS:
frontier; study, subject; territory, turf; occupation, profession, pursuit, racket, vocation; ambit, amplitude, breadth, compass, confine, dimension(s), extent, ken, reach, scope, sweep, width; subfield, subspecialty2.
an area over which activity, capacity, or influence extends
SYNONYMS:
ambit, amplitude, breadth, compass, confines, dimension(s), extent, reach, realm, scope, sweep, widthRELATED WORDS:
gamut, spectrum, spread; bailiwick, circle, demesne, department, discipline, domain, element, fief, fiefdom, field, province, region, specialty, sphere, terrain; frontier; horizon, panorama