Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “idea”

idea

noun [C] (SUGGESTION)    /aɪˈdɪə/
A2 a suggestion or plan for doing something: I've had an idea - why don't we go to the coast? "Let's go swimming." "That's a good idea!" If you have any ideas for what I could buy Jack, let me know. That's when I first had the idea of starting (= planned to start) my own business. I like the idea of living in the countryside but I'm not sure I'd like the reality. She's full of bright (= good) ideas. [+ to infinitive] It was Kate's idea to hire bikes. It's not a good idea to drive for hours without a rest.Ideas, concepts and theories
(Definition of idea noun (SUGGESTION) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of idea

Definitions of “idea” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

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