Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

eureka

exclamation
 
 
/jʊˈriː.kə/ often humorous

Definition

used to show that you have been successful in something you were trying to do: "Eureka!" she shouted as the engine started.InterjectionsSounds used as interjections
(Definition of eureka exclamation from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

Word of the Day

everything under the sun

everything that exists or is possible

Word of the Day

Blog

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