challenger
Americannoun
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a person or thing that challenges.
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Boxing. a boxer who fights a champion for his championship title.
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Radio. interrogator.
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U.S. Aerospace. none Challenger the second space shuttle to orbit and return to earth: exploded 1½ min. after launch on Jan. 28, 1986, causing the death of all seven on board.
Other Word Forms
Derived Forms
Etymology
Origin of challenger
Middle English word dating back to 1250–1300; see origin at challenge, -er 1
Explanation
Challengers don’t let things stay the way they are, they go against something already in place, like a rule or the score on the scoreboard. Or they go after the same thing you may want, like victory in a competition or even the parking spot you were waiting for. In earlier history, during the Middle Ages, a challenger was mostly a dreaded foe or someone who wanted to fight to the death with a sword. Some challengers want to challenge the truth or rightness of something, and that can be pretty serious too. In modern times, though, the word challenger often describes competitors who want to challenge each other in sports, on TV game shows, or in arguments. These challengers enjoy the challenge itself.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
While polls tipped Cepeda to finish ahead of his right-wing challenger, official results showed that he trailed, with 41% of votes compared to De la Espriella's 43.7%, with almost all ballots counted.
From BBC • May 31, 2026
The third challenger, Carmenlina Minasova, is a medical professional who lives in the Valley.
From Los Angeles Times • May 30, 2026
In briefings to local media, government sources have been more critical, labelling the rumours "wild speculation" -- in German, "wueste Spekulation", a word play seen as a veiled dig at Merz's potential challenger, Wuest.
From Barron's • May 29, 2026
The two other incumbents, Nick Melvoin and Rocio Rivas, each face a challenger with extremely limited campaign resources and no special-interest financial backing.
From Los Angeles Times • May 29, 2026
The absence of an Eiffel challenger continued to frustrate Burnham.
From "The Devil in the White City" by Erik Larson
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.