Belief
Belief noun - An idea that is believed to be true or valid without positive knowledge.
Usage example: it's my belief that the sky is blue because our eyes perceive the color blue easily
Notion is a synonym for belief in opinion topic. In some cases you can use "Notion" instead a noun "Belief", when it comes to topics like conception, creed, thinking, putting regard in as true. popular alternative
Notion
Notion noun - An idea that is believed to be true or valid without positive knowledge.
Usage example: has this naive notion that most people are basically honest
Belief is a synonym for notion in opinion topic. You can use "Belief" instead a noun "Notion", if it concerns topics such as idea, conception, creed, thinking. popular alternative
Mutual synonyms
How words are described
Both words in one sentence
- As such, many fans of the character began promoting the notion/belief that Ronnie was a nerdy and all all-around good guy who simply fell in with the wrong crowd at work and not a rotten to the core corrupt cop whose soul was as black as the rest of the team.
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Similarly the Koopalings are not Bowser's kids but rather random Child Soldier minions but fans scoff at the notion, though admittedly the games themselves support the belief depending on the title.
Source: Discontinuity / Video Games - Tolkien had a hard time reconciling the notion of an inherently evil race with his belief in free will.
Source: Abusive Alien Parents
Cite this Source
Notion and Belief. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/belief/notion
Belief & Notion. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/belief/notion>.
Notion or Belief. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/belief/notion.
Google Ngram Viewer shows how "belief" and "notion" have occurred on timeline