Dictionary.com
Thesaurus.com
Synonyms

defining moment

American  

noun

  1. a point at which the essential nature or character of a person, group, etc., is revealed or identified.


Etymology

Origin of defining moment

First recorded in 1980–85

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.

Start by capturing a defining moment that reveals your core character.

From MarketWatch • May 19, 2026

The company said at the time that “as we enter a defining moment shaped by AI, there is no one better than Aneel to lead this next chapter.”

From Barron's • Mar. 13, 2026

Kaja Kallas, who leads the European Commission’s foreign and security policy, described the killing of Khamenei as “a defining moment in Iran’s history.”

From The Wall Street Journal • Mar. 1, 2026

This is a defining moment for the Islamic Republic of Iran.

From BBC • Feb. 28, 2026

This was the defining moment in the correspondence.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "defining moment" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com