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Definitions

notion

[noh-shuhn] / ˈnoʊ ʃən /
NOUN
belief, idea
Synonyms
STRONGEST
approach assumption concept conception image impression knowledge opinion perception sentiment suggestion thought understanding view
STRONG
angle apprehension awareness clue comprehension conceit consciousness consideration cue discernment flash hint imagination inclination indication inkling insight intellection intimation intuition judgment penetration slant spark telltale twist wind wrinkle
Antonyms
STRONGEST
being concrete reality
STRONG
ignorance misunderstanding stupidity unconsciousness
WEAK
need
NOUN
whim, desire
Synonyms
STRONGEST
impulse wish
STRONG
caprice conceit fancy humor imagination inclination
Antonyms
STRONG
reality truth
WEAK
need

Usage

What are other ways to say notion? The noun notion suggests a fleeting, vague, or imperfect thought: a bare notion of how to proceed. 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.  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. Conception suggests a thought that seems complete, individual, recent, or somewhat intricate: The architect's conception delighted them.

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.

Andrew Milich and Jason Ginsberg had earlier created Skiff, which promised encrypted and secure file storage, and was acquired by AI firm Notion in 2024.

From MarketWatch • Mar. 13, 2026

Productivity app Notion recently merged its communications, social media and influencer functions into one 10-person, so-called storytelling team.

From The Wall Street Journal • Dec. 12, 2025

Simon Last is co-founder of Notion, based in San Francisco.

From Los Angeles Times • Aug. 8, 2024

For the past three years, he and his wife, Karen-Lynn Amouyal, have been using Notion, a popular software tool, to optimize their household and relationship.

From New York Times • May 12, 2024

For my own part, I like them prodigiously, and I can safely say it, I have hardly met with a Foreigner who has not the same Notion of Prague that I have.

From The Memoirs of Charles-Lewis, Baron de Pollnitz, Volume I Being the Observations He Made in His Late Travels from Prussia thro' Germany, Italy, France, Flanders, Holland, England, &C. in Letters to His Friend. Discovering Not Only the Present State of the Chief Cities and Towns; but the Characters of the Principal Persons at the Several Courts. by P?llnitz, Karl Ludwig von

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