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English definition of “idea”

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idea

noun
 
 
/aɪˈdɪə/
SUGGESTION [C] A2 a suggestion or plan: "Why don't we ask George?" "That's a good idea." [+ for + doing sth] Stevens explained his ideas for improving production. [+ to do sth] It was Kate's idea to hire a car.Ideas, concepts and theoriesPhilosophy
THOUGHT [U, no plural] B2 an understanding, thought, or picture in your mind: [+ of + doing sth] Clive soon got used to the idea of having children around the house again. [+ (that)] I don't want them to get the idea that we're not interested.Ideas, concepts and theoriesPhilosophy
have no idea B1 to not know: Beth had no idea where he'd gone.Understanding and comprehending
OPINION [C] B1 an opinion or belief: My husband and I have very different ideas about school discipline.PhilosophyOpinions, beliefs and points of view
AIM [no plural] the aim or purpose of something: The idea is to give local people a chance to voice their opinions. →  See also not have the foggiest (idea) (foggy) Goals and purposes
(Definition of idea from the Cambridge Learners Dictionary © Cambridge University Press)
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