Assumption
Assumption noun - Something taken as being true or factual and used as a starting point for a course of action or reasoning.
Notion is a synonym for assumption in anticipation topic. In some cases you can use "Notion" instead a noun "Assumption", when it comes to topics like conjecture, supposition.
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
Assumption is a synonym for notion in anticipation topic. You can use "Assumption" instead a noun "Notion", if it concerns topics such as belief, opinion, conjecture.
Mutual synonyms
Related pairs
How words are described
Cite this Source
Notion and Assumption. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/assumption/notion
Assumption & Notion. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/assumption/notion>.
Notion or Assumption. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/assumption/notion.
Google Ngram Viewer shows how "assumption" and "notion" have occurred on timeline