Meaning & use
notion
A general idea, belief, or understanding about something, often vague or not fully developed.
See it in a sentence
He had only a vague notion of how the engine actually worked.
The notion that money guarantees happiness has been challenged by many studies.
A note on using this word
Often implies a less rigorous or less certain idea than a fully developed 'concept' or 'theory.'
Words with a similar meaning
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Make it your own
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