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idea

[ahy-dee-uh, ahy-deeuh] / aɪˈdi ə, aɪˈdiə /


Usage

What are other ways to say idea? The noun idea, although it may refer to thoughts of any degree of seriousness or triviality, is commonly used for mental concepts considered more important or elaborate: We pondered the idea of the fourth dimension. The idea of his arrival frightened me. Thought, which reflects its primary emphasis on the mental process, may denote any concept except the more weighty and elaborate ones: I welcomed his thoughts on the subject. A thought came to him. Conception suggests a thought that seems complete, individual, recent, or somewhat intricate: The architect's conception delighted them. Notion suggests a fleeting, vague, or imperfect thought: a bare notion of how to proceed.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

You asked whether delaying until age 67 would be a bad idea.

From MarketWatch • Jun. 11, 2026

No one forced him to sign-up, he said, but the idea was constantly present.

From Barron's • Jun. 11, 2026

The idea is not strict enforcement, but deterrent measures to alter player behaviour.

From BBC • Jun. 10, 2026

The hypothesis views Earth itself as capable of gradually producing an organic world from an initially all-inorganic environment under harsh primordial conditions, an idea broadly consistent with earlier abiogenesis concepts.

From Science Daily • Jun. 10, 2026

I have no idea how far we walked that first day of our long march—probably only a few kilometers, but it felt like a hundred.

From "An Elephant in the Garden" by Michael Morpurgo




Vocabulary lists containing idea


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