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Definitions

idea

[ahy-dee-uh, ahy-deeuh] / aɪˈdi ə, aɪˈdiə /
NOUN
a conception or thought.
Synonyms
STRONGEST
belief concept conception conclusion design feeling form intention interpretation meaning notion objective opinion perception plan scheme sense solution suggestion theory thought understanding view
STRONG
aim approximation brainstorm clue conviction doctrine essence estimate fancy flash guess hint hypothesis import impression inkling intimation judgment object pattern purpose reason significance suspicion teaching viewpoint
Antonyms
STRONGEST
reality thing
STRONG
insignificance measurement truth

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.

The idea is each playlist is the soundtrack to a section of her journey that they both listen to, so they can feel connected despite the distance.

From BBC • Apr. 10, 2026

In case the idea of saving humanity is not high enough stakes, guests’ scores will be displayed while they progress through the storyline with their team.

From Los Angeles Times • Apr. 9, 2026

The European Union was quick to denounce the idea Thursday.

From Barron's • Apr. 9, 2026

“I need somebody who can win and make a difference,” he said, adding that he will have a better idea of whom to support once he hears plans for driving change.

From The Wall Street Journal • Apr. 9, 2026

The idea is to shoot the gophers as they pop up out of their holes, but as I watch the guy ahead of me, my heart sinks.

From "Red Flags and Butterflies" by Sheryl Azzam