Thesaurus.com
Dictionary.com
Showing results for idea. Search instead for sidea.
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.

Follow up work and related studies have continued to strengthen the idea that oral bacteria are central to how nitrate affects the body.

From Science Daily • May 25, 2026

WSJ: Is it a good idea for people to ask commercial LLMs about the truth of conspiracy theories?

From The Wall Street Journal • May 24, 2026

Dos Santos dismissed the idea that the problem is solely related to the tactical scheme and insisted that the most important change involves reclaiming aggressive principles with and without the ball.

From Los Angeles Times • May 24, 2026

"We did everything. It was a great time to be working, but none of us had any idea what we were in the middle of," says Gillian.

From BBC • May 24, 2026

I had the idea Dad had invited him to the butchering to call his bluff and show him up.

From "The Teacher’s Funeral" by Richard Peck




Vocabulary lists containing idea


Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "idea" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com