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
Trevor Bach, Dallas Morning News, 26 Jan. 2026
Many of them creep around on social media and almost certainly legions of them come from bot accounts on X.
—Gustavo Arellano, Los Angeles Times, 26 Jan. 2026
On social media, he was getting pilloried by Fuentes’s legions of fans, many of them alienated young conservatives who call themselves Groypers, in honor of an obese version of the Pepe the Frog meme.
—Jason Zengerle, New Yorker, 24 Jan. 2026
The yacht was decorated with elegant restraint by Peter Marino, one of a legion of star interior designers who had outfitted Valentino’s homes around the world over decades.
—Matt Tyrnauer, Vanity Fair, 20 Jan. 2026
See All Example Sentences for legion
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Noun
But more recently — as D-FW has enjoyed a broad economic boom that’s transformed areas like Uptown and Frisco and brought hundreds of companies and legions of new residents to the region — it’s also emerged as an increasingly popular hotspot for the rich.
—Trevor Bach, Dallas Morning News, 26 Jan. 2026
Many of them creep around on social media and almost certainly legions of them come from bot accounts on X.
—Gustavo Arellano, Los Angeles Times, 26 Jan. 2026
On social media, he was getting pilloried by Fuentes’s legions of fans, many of them alienated young conservatives who call themselves Groypers, in honor of an obese version of the Pepe the Frog meme.
—Jason Zengerle, New Yorker, 24 Jan. 2026
The yacht was decorated with elegant restraint by Peter Marino, one of a legion of star interior designers who had outfitted Valentino’s homes around the world over decades.
—Matt Tyrnauer, Vanity Fair, 20 Jan. 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 1 Feb. 2026.
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