• WordNet 3.6
    • n protagonist the principal character in a work of fiction
    • n protagonist a person who backs a politician or a team etc. "all their supporters came out for the game","they are friends of the library"
    • ***
Webster's Revised Unabridged Dictionary
    • n Protagonist One who takes the leading part in a drama; hence, one who takes lead in some great scene, enterprise, conflict, or the like. "Shakespeare, the protagonist on the great of modern poetry."
    • ***
Century Dictionary and Cyclopedia
    • n protagonist In the Gr. drama, the leading character or actor in a play; hence, in general, any leading character.
    • ***
Chambers's Twentieth Century Dictionary
    • n Protagonist prō-tag′on-ist a leading character, esp. in a play
    • ***


  • Norman Mailer
    “Once a newspaper touches a story the facts are lost forever, even to the protagonists.”


Webster's Revised Unabridged Dictionary
Gr. prwtagonisth`s; prw^tos first + 'agonisth`s an actor, combatant, fr. 'agw`n a contest
Chambers's Twentieth Century Dictionary
Gr. prōtos, first, agōnistēs, a combatant.


In literature:

Two of many protagonists of contact patrol were Pretyman and Bishop.
"Aviation in Peace and War" by Sir Frederick Hugh Sykes
The protagonist of reversion to the regime of lacking noses should lack a nose.
"The Shadow On The Dial, and Other Essays" by Ambrose Bierce
The editor-in-chief, Weibezahl, was the recording secretary at these intellectual Olympiads, and Herr Carovius was the protagonist.
"The Goose Man" by Jacob Wassermann
And he had been the protagonist of everything sensible, orthodox, and prudent!
"The Prodigal Father" by J. Storer Clouston
Between the two protagonists hovered Lewes, sceptical, inclined towards aggression.
"The Wonder" by J. D. Beresford
She always speaks of you as her great protagonist of science.
"Dolly Reforming Herself" by Henry Arthur Jones
They were not altogether ill-matched, these two colossal protagonists of the Saurian and the Mammal.
"In the Morning of Time" by Charles G. D. Roberts
This was the Catharine of Elizabeth's court, and protagonist of that revolution which first made her known to Europe.
"The Great Events by Famous Historians, v. 13" by Various
I became Man in her imagination, the protagonist of the world.
"The Passionate Friends" by Herbert George Wells
The protagonist of the movement, Howe, was the very reverse of a separatist.
"The Winning of Popular Government" by Archibald Macmechan

In news:

Tribrid Protagonist at Mido 2012.
My protagonist has two friends.
Protagonist in "Extremely Loud and Incredibly Close" goes on search for dad's last embrace.
The character of Will Donner, arguably the protagonist of the very strange romantic dramedy Waiting for Forever, is supposed to be charming and carefree.
He responded, essentially, that being a prisoner of war was a story with no protagonist, no hero.
Now that I've had a chance to watch both and mull over the finales, I realized how much the two series, and the two protagonists, have in common.
The protagonist of Nicholas Jarecki's Arbitrage , played by Richard Gere, is almost a dramatic take on Jim Carrey's character in Liar Liar (1996).
Assassin 's Creed III is latest installment in the critically-acclaimed series from Ubisoft, and drops new protagonist Connor into the very heart of the Revolutionary War.
Aveline is the deadly but charming protagonist of Assassin 's Creed III: Liberation.
Author Helen Fielding says the new book will bring Bridget to the present day and feature the protagonist tweeting.
In Walker Percy's "Love in the Ruins," the protagonist, a doctor and an inventor, recites what he calls the scientist's prayer.
Assassin's Creed III is latest installment in the critically-acclaimed series from Ubisoft, and drops new protagonist Connor into the very heart of the Revolutionary War.
The protagonists of A Simple Life fight loneliness together.
"Hope is a good thing, maybe the best of things," the protagonist says in "The Shawshank Redemption".
Hale 's blogs on female protagonists here and here.

In science:

Models with n = −1 are intimately related to the soluble case n 6= −1 and are much richer than their traditional protagonist - the de Sitter solution.
Static charged perfect fluid spheres in general relativity
The main protagonist of the transformations we consider is the bivariate polynomial Lmz which implicitly defines the Stieltjes transform m(z ) via the equation Lmz(m, z ) = 0.
The polynomial method for random matrices
The Activity Theory based TA approach in HCI (Nardi 1996) accommodates human actors as integral components or “protagonists” in the system environment.
On challenges and opportunities of designing integrated IT platforms for supporting knowledge works in organizations
In the course of the thought experiments discussed above, the protagonist Sophie articulated what can be considered a new method of scientific inquiry.
Compression Rate Method for Empirical Science and Application to Computer Vision
The scene being set, let us bring in the protagonists.
Guess your neighbour's input: no quantum advantage but an advantage for quantum theory