idea - definition, thesaurus and related words from WordNet-Online

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Noun idea has 5 senses

idea, thought - the content of cognition; the main thing you are thinking about; "it was not a good idea"; "the thought never entered my mind"
--₁ is a kind of content, cognitive content, mental object
--₁ has particulars:

Derived form: verb ideate₁

idea - a personal view; "he has an idea that we don't like him"
--₂ is a kind of opinion, sentiment, persuasion, view, thought
estimate, estimation, approximation, idea - an approximate calculation of quantity or degree or worth; "an estimate of what it would cost"; "a rough idea how long it would take"
--₃ is a kind of calculation, computation, figuring, reckoning
--₃ has particulars:
guess, guesswork, guessing, shot, dead reckoning; guesstimate, guestimate; overestimate, overestimation, overrating, overreckoning; underestimate, underestimation, underrating, underreckoning
mind, idea - your intention; what you intend to do; "he had in mind to see his old teacher"; "the idea of the game is to capture all the pieces"
--₄ is a kind of purpose, intent, intention, aim, design
theme, melodic theme, musical theme, idea - (music) melodic subject of a musical composition; "the theme is announced in the first measures"; "the accompanist picked up the idea and elaborated it"
--₅ is a kind of tune, melody, air, strain, melodic line, line, melodic phrase
--₅ has particulars: motif, motive; statement; variation