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
Literary Hub, 7 Nov. 2025
Cuomo also said Mamdani would bring socialism to a city that is home to legions of Hispanic voters who fled the ideology.
—Philip Elliott, Time, 5 Nov. 2025
Its New York City chapter played a key role in Mamdani's campaign, providing an early endorsement and a legion of volunteers for canvassing and fundraising - and raising its own profile in the process.
—NPR, 5 Nov. 2025
After two seasons with the Tri-City Americans in the Western Hockey League, Smith is now being observed by a whole new region — and legion — of hockey fans.
—Aaron Portzline, New York Times, 3 Nov. 2025
See All Example Sentences for legion
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Noun
Indeed, one of General George Washington’s greatest achievements was to avoid being cornered and forced to capitulate to these intimidating legions in the war’s early years.
—Literary Hub, 7 Nov. 2025
Cuomo also said Mamdani would bring socialism to a city that is home to legions of Hispanic voters who fled the ideology.
—Philip Elliott, Time, 5 Nov. 2025
Its New York City chapter played a key role in Mamdani's campaign, providing an early endorsement and a legion of volunteers for canvassing and fundraising - and raising its own profile in the process.
—NPR, 5 Nov. 2025
After two seasons with the Tri-City Americans in the Western Hockey League, Smith is now being observed by a whole new region — and legion — of hockey fans.
—Aaron Portzline, New York Times, 3 Nov. 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 Nov. 2025.
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