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heroism

American  
[her-oh-iz-uhm] / ˈhɛr oʊˌɪz əm /

noun

  1. the qualities or attributes of a hero or heroine.

    He showed great heroism in battle.

    Synonyms:
    fortitude, daring, courage, bravery, gallantry, prowess, valor, intrepidity
    Antonyms:
    timidity, cowardice
  2. heroic conduct; courageous action.

    Pat's returning into the burning building was true heroism.


heroism British  
/ ˈhɛrəʊˌɪzəm /

noun

  1. the state or quality of being a hero

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of heroism

1660–70; hero + -ism; compare French héroïsme

Explanation

When you think of heroism, you might think of great acts of bravery, such as rushing into burning buildings and facing danger in battle. Heroism consists of putting others first, even at your own peril. The noun heroism comes from the Greek hērōs, which referred to a demigod. As someone who shows great courage and valor is referred to as a hero, their actions are considered to be acts of heroism. 19th Century lawyer Robert Green Ingersoll said it well: “When the will defies fear, when duty throws the gauntlet down to fate, when honor scorns to compromise with death — that is heroism.”

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Vocabulary lists containing heroism

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.

"We're so proud of him... I see messages about him, literally from all over the world, talking about his heroism."

From Barron's • May 19, 2026

That is certainly true of Quincy’s statues of Florian and Michael, who have long been symbols of the heroism and sacrifice of firefighters and other first responders.

From The Wall Street Journal • May 4, 2026

Iskander’s David is a young man whose youthful piety and heroism make him a sympathetic figure, notwithstanding the bag of cold cuts.

From Salon • Mar. 29, 2026

The group reunited on Saturday and Alex said Lilah would grow up knowing about the men who saved her life and she would never forget their heroism.

From BBC • Jan. 17, 2026

That’s something we should never forget; while others display their heroism in battle or against the Germans, our helpers prove theirs every day by their good spirits and affection.

From "The Diary of a Young Girl" by Anne Frank

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