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 language had evolved mainly from Attic and was spoken as a lingua franca throughout the eastern Roman realm. — Scott Spires, Encyclopedia Britannica, 18 Sep. 2026

Aware of the constant clamor for reboots and revivals, Boreanaz hasn’t ruled out a return to the supernatural realm. — Kate Hogan, PEOPLE, 17 Sep. 2026

And Mylette Nora’s costumes artfully conjure both the underworld and the spiritual realm. — Theater Critic, Los Angeles Times, 17 Sep. 2026

So the larger questions of machine and mind are being played out in the realm of fiction in very profound ways. — Literary Hub, 16 Sep. 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