Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “defining moment”

defining moment

noun [C]    
the point at which a situation is clearly seen to start to change : The end of the Cold War was a defining moment for the world in more ways than one.Turning points and deciding moments
(Definition of defining moment noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of defining moment

Translations of “defining moment”

Word of the Day

grand prix

one of a series of important international races for very fast and powerful cars

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More