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
Paul Sullivan, Chicago Tribune, 7 July 2025
However jaundiced the perspective of the sole trade reporter in attendance, though, the vibe among the stars on stage and the legions of fans who turned out for the party was purely joyous.
—Patrick Brzeski, HollywoodReporter, 30 June 2025
The pop and dance superstar has been promoting singles from the collection for almost a year now, and her legion of fans, known as Animals, are excited for the singer’s sixth full-length.
—Hugh McIntyre, Forbes.com, 27 June 2025
Entering this decade, Flamengo’s YouTube channel surpassed over 5 million subscriptions and it is estimated to have had over 40 million fans, a number that has grown even more in recent years.
Flamengo has made those legions happy often as an eight-time champion of Brazil’s top league.
—Andre Fernandez, Miami Herald, 27 June 2025
See All Example Sentences for legion
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Noun
And that has led the Cubs to invite more people like Cooper, who is popular with her legion of followers but doesn’t have the same mass appeal with Cubs fans — or, apparently, Cardinals fans.
—Paul Sullivan, Chicago Tribune, 7 July 2025
However jaundiced the perspective of the sole trade reporter in attendance, though, the vibe among the stars on stage and the legions of fans who turned out for the party was purely joyous.
—Patrick Brzeski, HollywoodReporter, 30 June 2025
The pop and dance superstar has been promoting singles from the collection for almost a year now, and her legion of fans, known as Animals, are excited for the singer’s sixth full-length.
—Hugh McIntyre, Forbes.com, 27 June 2025
Entering this decade, Flamengo’s YouTube channel surpassed over 5 million subscriptions and it is estimated to have had over 40 million fans, a number that has grown even more in recent years.
Flamengo has made those legions happy often as an eight-time champion of Brazil’s top league.
—Andre Fernandez, Miami Herald, 27 June 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 20 Jul. 2025.
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