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Definitions

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.

See Examples For:

For nearly an hour, he had no idea whether she was alive and kept calling her without success.

From BBC Aug. 30, 2026

The recommendations centered on the idea that Syracuse was failing to recruit aggressively enough.

From The Wall Street Journal Aug. 30, 2026

The team calls this idea the "Relativity of Spacetime Superpositions."

From Science Daily Aug. 30, 2026

The next year, he enrolled in Harvard Business School, where he developed the idea for Thrive.

From Los Angeles Times Aug. 30, 2026

“What’s all this?” she asked, but she had an idea, and the panic started to bubble.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

Professor Mark Sullivan, also from the University of Southampton, said questioning established ideas and observations remains an essential part of the scientific process.

From Science Daily Aug. 29, 2026

“He’s cautious about how he reacts. … He doesn’t want people getting ideas on whether something is good or bad because he understands others have better product sense.”

From MarketWatch Aug. 29, 2026

"What is particularly difficult for me to accept is that his ideas are not dead," the 74-year-old said.

From Barron's Aug. 28, 2026

“Any ideas of things to see in L.A.?” he asks me, dressed in a violet-colored chore jacket only a few shades removed from the blue one he wore onstage.

From Los Angeles Times Aug. 27, 2026

“The whole country’s depending on us, Novis, even if they don’t know who we are. We need new ideas, and we need them now.”

From "The Bletchley Riddle" by Ruta Sepetys and Steve Sheinkin




Vocabulary lists containing idea


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