1
: the principal unit of the Roman army comprising 3000 to 6000 foot soldiers with cavalry
Caesar and his legions defeated the Gauls.
2
: a large military force
3
: a very large number : multitude
… won him … a legion of devoted followers.—
Irving Kolodin
Irving Kolodin4
: a national association of ex-servicemen
the American Legion
Examples of legion in a Sentence
Noun
Legions of people came to see him perform.
joined the French Foreign Legion
Adjective
the obstacles that the programmers had to overcome have been legion
Recent Examples on the Web
Sarah Shachat, IndieWire, 23 Mar. 2026
With apologies to the legions of Frankenstein and Me fans, here are our assessments of Gosling’s other performances, listed from worst to best.
—Roxana Hadadi, Vulture, 20 Mar. 2026
God complex Having legions of loyal followers who regard you as Muad'Dib, the Fremen chosen one, can clearly go to your head, and Paul isn't afraid to put on a show for the masses.
—Richard Edwards, Space.com, 17 Mar. 2026
In its quest to make deliveries even faster, Amazon has experimented with a number of programs that sought to leverage its sprawling fulfillment network and legions of on-demand Flex gig workers.
—Annie Palmer, CNBC, 17 Mar. 2026
See All Example Sentences for legion
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Noun
There’s a whole legion of other family members and potential suitors to join the Forsyte clan, too, of course.
—Sarah Shachat, IndieWire, 23 Mar. 2026
With apologies to the legions of Frankenstein and Me fans, here are our assessments of Gosling’s other performances, listed from worst to best.
—Roxana Hadadi, Vulture, 20 Mar. 2026
God complex Having legions of loyal followers who regard you as Muad'Dib, the Fremen chosen one, can clearly go to your head, and Paul isn't afraid to put on a show for the masses.
—Richard Edwards, Space.com, 17 Mar. 2026
In its quest to make deliveries even faster, Amazon has experimented with a number of programs that sought to leverage its sprawling fulfillment network and legions of on-demand Flex gig workers.
—Annie Palmer, CNBC, 17 Mar. 2026
See All Example Sentences for legion
Cite this Entry
“Legion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/legion. Accessed 29 Mar. 2026.
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