Synonyms for Kingdom:

n.

corridor, rule, breadbasket, dominions, airspace, subject territory, scepter, principality, co, monarchy, lands, belt, throne, the borderland, crown, suzerainty, sway. preserve, orbit. area (noun)
precinct, locality, quarter, principality.
category (noun)
class, degree, Family, race, ilk, clan, phylum, designation, grade, form, level, line, set, genotype, rank, grain, breed, people, stripe, mold, denomination, style, label, strain, stamp, genus, persuasion, taxonomy, feather, species, category, brand, kind, series, caste, order, sort, make, type, variety, classification, step.
historically, an area ruled by a monarch (noun)
division, realm, empire, principality, county, domain, suzerainty, province, crown, scepter, monarchy, sway, throne, rule, territory, field, country, nation, lands, possessions, tract, state.
possession (noun)
holding, property, worth, realm, land, territory, empire, wealth, effects, acquisition, possession.
property (noun)
principal, goods, farm, ground, ranch, legacy, real estate, fixtures, title, chattel, estate, belongings, stock, realty, inheritance, manor, assets, Resources, possessions.
region (noun)
circuit, municipality, city, sector, nation, shire, earldom, canton, borough, state, region, dukedom, division, duchy, district, zone, town, riding, quarter, field, country, place, province, neighborhood, parcel, bailiwick, colony, plot, locality, domain, lot, county, precinct, area, commonweal, beat, tract.
state (noun)
realm, land.

Other synonyms:

orbit. preserve. Other relevant words:
corridor, preserve, breadbasket, throne, airspace, dominions, principality, orbit, co, monarchy, sway, belt, suzerainty, lands, crown, rule, scepter.

Usage examples for kingdom

  1. God's kingdom is within every one of us; but it may make us worse, as well as make us better. – Sermons on National Subjects by Charles Kingsley
  2. Not so the Kingdom of Truth. – Church and State as Seen in the Formation of Christendom by T. W. Allies
  3. 42, 43. And he said unto Jesus, Lord, remember me when thou comest into thy kingdom – The Good News of God by Charles Kingsley