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
Rosana Lai, Glamour, 3 June 2025
Her southern drawl and uniquely humorous line delivery earned her virality amid a legion of new fans online, who often shared videos lip synching or imitating her notable lines from the show's third season.
—Madison E. Goldberg, People.com, 3 June 2025
How a British Dad Made Comedy Gold: George Lewis’s riffs on the absurdities of millennial parenting — and the inner lives of 2-year-olds — have won him legions of fans online and galvanized his once middling stand-up career.
—Nariman El-Mofty Nariman El-Mofty, New York Times, 2 June 2025
The company has legions of online fans and is known for TikTok marketing that feels more natural to consumers.
—Gabrielle Fonrouge, CNBC, 28 May 2025
See All Example Sentences for legion
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Noun
In, Hello Kitty Superfans Are Still Going Strong The iconic character—who turns 50 this summer—still has legions of die-hard fans online and dozens of collaborations with top retailers and designers.
—Rosana Lai, Glamour, 3 June 2025
Her southern drawl and uniquely humorous line delivery earned her virality amid a legion of new fans online, who often shared videos lip synching or imitating her notable lines from the show's third season.
—Madison E. Goldberg, People.com, 3 June 2025
How a British Dad Made Comedy Gold: George Lewis’s riffs on the absurdities of millennial parenting — and the inner lives of 2-year-olds — have won him legions of fans online and galvanized his once middling stand-up career.
—Nariman El-Mofty Nariman El-Mofty, New York Times, 2 June 2025
The company has legions of online fans and is known for TikTok marketing that feels more natural to consumers.
—Gabrielle Fonrouge, CNBC, 28 May 2025
See All Example Sentences for legion
Cite this Entry
“Legion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/legion. Accessed 10 Jun. 2025.
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