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Synonyms

realm

American  
[relm] / rɛlm /

noun

  • realms
    plural
  1. a royal domain; kingdom.

    the realm of England.

  2. the region, sphere, or domain within which anything occurs, prevails, or dominates.

    the realm of dreams.

  3. the special province or field of something or someone.

    the realm of physics; facts within the realm of political scientists.


realm British  
/ rɛlm /

noun

  1. a royal domain; kingdom (now chiefly in such phrases as Peer of the Realm )

  2. a field of interest, study, etc

    the realm of the occult

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Synonym Usage

See kingdom.

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of realm

First recorded in 1250–1300; Middle English realme, reaume, Old French reialme, from Latin regimen “guidance, direction, rule,” influenced by Old French reial “royal” ( see origin at royal)

Explanation

A realm is an area that is ruled by something. If you are a controlling cook who doesn’t like anyone to do anything else in the kitchen, then the kitchen is your realm. Realm comes from the French for kingdom, but since there aren’t so many kings or queens left in the world, you’ll more often find it referring to non-royal spheres. That could be the sphere of a special kind of knowledge, like the realm of biology, or the political realm. Or it could be an area dominated by some group. Little Italy was famously the realm of the mafia; Hollywood is the realm of film stars.

Keep Reading on Vocabulary.com

Vocabulary lists containing realm

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

By keeping the action and themes largely Earthbound and removing the interstellar glamour associated with flying supes and suits, “Lanterns” reignites our consideration of a superhero long written off in the live-action realm.

From Salon Aug. 14, 2026

“It was a different realm for us,” he says.

From Los Angeles Times Aug. 12, 2026

"Continued investment in Oxford Street's public realm is so important," she said.

From BBC Aug. 12, 2026

Premium toppings, extravagant presentations and supersize varieties are pushing hot dogs into the realm of haute cuisine.

From The Wall Street Journal Aug. 7, 2026

He’d sent the badger toward every single realm.

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

We look to be back in the realms of a two-horse race and the two horses have experienced jockeys now, not two Old Firm apprentices like Russell Martin and Wilfried Nancy.

From BBC Jul. 31, 2026

Miyazaki’s tales also tend to immerse us in supernatural domains existing parallel to our own, as if reality masks more ethereal, life-affirming realms.

From Salon Jul. 30, 2026

“We have to look out for our future and our new generations, to be strong in realms other than weapons.”

From Los Angeles Times Jun. 22, 2026

"Used properly, AI can open doors to whole new realms to explore."

From Science Daily Apr. 23, 2026

But because Ruth was from Hailsham, somehow the whole notion came within the realms of the possible.

From "Never Let Me Go" by Kazuo Ishiguro

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