protagonist
Americannoun
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the leading character, hero, or heroine of a drama or other literary work.
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a proponent for or advocate of a political cause, social program, etc.
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the leader or principal person in a movement, cause, etc.
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the first actor in ancient Greek drama, who played not only the main role, but also other roles when the main character was offstage.
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Physiology. agonist.
noun
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the principal character in a play, story, etc
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a supporter, esp when important or respected, of a cause, political party, etc
Other Word Forms
Etymology
Origin of protagonist
First recorded in 1665–75; from Greek prōtagōnistḗs “actor who plays the first part,” literally, “first combatant,” equivalent to prôt(os) “first” + agōnistḗs “one who contends for a prize, combatant, actor”; see origin at proto-, antagonist
Explanation
A protagonist is the central character in a story: the protagonist of Huckleberry Finn is — guess who? — Huckleberry Finn. A novel, movie, or play might have many main characters, but it can really only have one protagonist — or maybe two in the case of, say, Romeo and Juliet. That's because protos means "first" in Greek, and agonistes means "competitor" or "actor." It can also mean a leading figure in a real-life situation: "Abraham Lincoln and Jefferson Davis were the protagonists of the U.S. Civil War." Don't use it to mean "a supporter of an idea or cause"; the word you're looking for in that situation is proponent.
Vocabulary lists containing protagonist
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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.
Her 50-something protagonist, Alan Anderson, and his socially striving wife Vivian, are at least about to start thinking about where their family is going to go, once Alan retreats to a backyard playhouse.
From Los Angeles Times • Jun. 1, 2026
I opened it and found myself reading a familiar passage about the protagonist Winston Smith’s cubicle and the slot in the wall nicknamed the “memory hole.”
From Salon • May 31, 2026
American actor Chiwetel Ejiofor plays the protagonist in what became Parsons' first full-length director's credit.
From Barron's • May 28, 2026
Mr. Connelly introduced his best-known series protagonist, Harry Bosch, in 1992.
From The Wall Street Journal • May 22, 2026
These brief vignettes were told from the point of view of 2112's anonymous protagonist.
From "Ready Player One: A Novel" by Ernest Cline
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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.