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

While disrupting the business of an American multinational company may seem a pallid response to the destruction of an Iranian primary school where more than a hundred children were killed, such asymmetric attacks in the physical and digital realms have been a feature of this conflict. —Sue Halpern, New Yorker, 24 Apr. 2026

But an attorney general would have to show a very narrow and specific realm in which prices would be raised significantly for consumers or output would be reduced. —Brian Welk, IndieWire, 23 Apr. 2026

Armenta’s entry into the música mexicana realm was not as calculated as his lyricism; at least not at first. —Andrea Flores, Los Angeles Times, 23 Apr. 2026

Give me a mock compiled by an actual football expert who has years of experience in this realm and done the hours of homework (via studying game tape and talking to NFL personnel and scouts) over this slop. —Jim Reineking, USA Today, 23 Apr. 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