An idea is like a virus vs Notion

When to use each in English, with meaning, register, and examples.

An idea is like a virus

Beyond 10,000 (less common)

Notion

Top 2,000 (common)B2noun
Most common: Notion
 An idea is like a virusNotion
Pronunciation🇬🇧 //ən aɪˈdɪə ɪz laɪk ə ˈvaɪərəs//🇺🇸 //ən aɪˈdiə ɪz laɪk ə ˈvaɪərəs//🇬🇧 /["/ˈnəʊʃn/"]/🇺🇸 /["/ˈnəʊʃn/"]/
MeaningAn idea can spread quickly like a virus.An idea or belief about something.
ExampleAn idea is like a virus that can infect everyone in a community.The notion of freedom varies greatly between cultures.
RegisterNeutralNeutral
How commonBeyond 10,000 (less common)Top 2,000 (common)
CEFR level-B2
Part of speechnoun
Collocationsspread quickly, infect others, catch on, innovative ideas, memorable conceptabsurd, foolish, misguided, have, challenge, debunk, notion of
Antonyms-reality, fact
Common mistakesMixing up the metaphor with other sayings like 'an idea is like a beam of light'., Confusing 'like' with 'as' in similar phrases., Using it without context, which may confuse listeners.Confusing 'notion' with 'motion' (they sound similar)., Using 'notion' when 'fact' is intended., Overusing 'notion' in casual conversations.
Usage notesUse this phrase in discussions about how ideas spread. It’s appropriate in both formal and informal contexts, especially in sociology or psychology.Use 'notion' in contexts where discussing concepts or beliefs. This word is appropriate in both spoken and written language but leans more towards academic or philosophical discussions.

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An idea is like a virus

Frequently asked questions: An idea is like a virus vs Notion

What's the difference between An idea is like a virus and Notion?

An idea is like a virus: An idea can spread quickly like a virus. Notion: An idea or belief about something.

Which is more common: An idea is like a virus and Notion?

Notion is the most common in everyday English.

Can you show an example of each?

An idea is like a virus: An idea is like a virus that can infect everyone in a community. Notion: The notion of freedom varies greatly between cultures.

Can I use An idea is like a virus and Notion interchangeably?

Not always. An idea is like a virus and Notion are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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