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

This goes beyond bad actors like fraudsters and into the realms of rogue AI agents. —Andrew Sever, Forbes.com, 28 May 2026

In the realm of historical fiction, these tactics are highly unusual. —Literary Hub, 28 May 2026

Leyla’s stories often deal with an ordinary task or sensation that connects the character to some higher realm of experience. —Sabrina Jaszi, The Dial, 28 May 2026

As Fortune’s Most Powerful Women Editor Emma Hinchliffe notes in her opening essay, this year’s ranking highlights the rise of women in realms from AI to Big Oil. —Diane Brady, Fortune, 27 May 2026

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