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

• 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

One major priority of the CCP in this realm is to produce scientific papers on the dangers of climate change and the utility of alternative forms of energy. —Robert Schmad, The Washington Examiner, 7 Sep. 2025

The film’s terrifying final ride, when the bus is surrounded by fire on all sides with no choice but to drive through it, is when Greengrass thought of Ford’s 1939 classic the most, transitioning the tone from a realistic realm to a more cinematic one. —Tomris Laffly, Time, 6 Sep. 2025

Okay, if there is a possibility of that nature, come up with at least one instance of a factor that goes outside of the mental health precondition realm. —Lance Eliot, Forbes.com, 6 Sep. 2025

With astronomy firmly established as a science, astrology was relegated to the realm of the occult or pseudoscience. —Christopher P. Scheitle, The Conversation, 5 Sep. 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
• 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