Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “co-star”

co-star

noun [C]     /ˈkəʊ.stɑːr/ US  /ˈkoʊ.stɑːr/
a famous actor appearing with another famous actor in a film or a play, when both have parts of equal importance: The co-stars of "Casablanca" are Ingrid Bergman and Humphrey Bogart.Actors and performers
(Definition of co-star noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of co-star

More definitions for “co-star”

Definitions of “co-star” in other dictionaries

Word of the Day

beneficiary

a person or group who receives money, advantages, etc. as a result of something else

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