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Definition of realm

realm

/ˈrɛlm/
realm
Plural:realms
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realm Lexical Profile

realm Game Scores & Validity

• noun

1

A field, sphere, or domain of activity, interest, thought, or influence.

Example

"Recent advances in quantum computing have pushed the technology well beyond the realm of pure theory."

2

A royal domain or sovereign state ruled by a monarch; a kingdom.

Example

"The ancient laws of the realm were codified by the king and his council of nobles."

3

A primary biogeographical division of the Earth's surface characterized by distinct evolutionary histories and assemblages of organisms.

Example

"Madagascar and the surrounding islands form a distinct biogeographic subdivision within the Afrotropical realm."

Synonyms
View all synonyms for realm

• Rhymes for realm

• Nearby Words

reallocate
reallocation
really
realm
realness
realtor
realty

Word Origin & Etymology

Borrowed in the late 13th century from Old French 'reaume' (modern French 'royaume'), which derived from a Vulgar Latin blend of 'regimen' (rule, government) and 'regalis' (royal), ultimately rooted in Latin 'rex' (king).

Usage Trend

Historical frequency of usage in published text.

180019102020
Data source: Google Books Ngram Viewer

Cite this Entry

Wordmom. (2026). Definition of Realm. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/realm
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