realm

noun

ˈrelm 

1

: kingdom sense 3

2

: sphere, domain

within the realm of possibility

3

: a primary marine or terrestrial biogeographic division of the earth's surface

Synonyms of realm

• area
• domain
• element
• field
• department
• sphere
• kingdom
• walk
• territory

Examples of realm in a Sentence

new discoveries in the realm of medicine

in political and legal realms

Recent Examples on the Web

Built for entertaining, everyday life The transformation of the main residence brought the farmhouse into the realm of plush, modern comfort while preserving its agrarian soul. —David Caraccio, Sacbee.com, 13 Dec. 2025

For many, adolescence marks a turn inward, a withdrawal into private realms. —Hua Hsu, New Yorker, 13 Dec. 2025

Far from the nonprofit realm, OpenAI has emerged as one of the fastest-growing commercial entities on the planet, zooming to a $500 billion private market valuation, with almost all of that value accruing since the company’s launch of ChatGPT three years ago. —Mackenzie Sigalos, CNBC, 12 Dec. 2025

But rumors have begun to spread through the town, with explanations that often drift into the realm of the mystical. —Christian Zilko, IndieWire, 11 Dec. 2025

Word History

Etymology

Middle English realme, from Anglo-French, alteration of Old French reiame, from Latin regimen control — more at regimen

First Known Use

13th century, in the meaning defined at sense 1

Phrases Containing realm

• coin of the realm
• outside the range/realm of possibility
• outside the realm of the possible
• range/realm of possibility
• within the range/realm of possibility
• within the realm of the possible

Rhymes for realm

• elm
• helm
• overwhelm

Kids Definition

realm

noun

ˈrelm 

1

: kingdom sense 1

2

: field of influence or activity

the realm of art