Inquiry vs Investigation

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

 InquiryInvestigation
MeaningA question or asking about something.Looking into something to find out more about it.
CEFR levelB2B2
Part of speechnounnoun
Usage notesUse 'inquiry' in formal situations like business or academic contexts, not in casual conversations. It’s suitable for asking for information or clarification.Use 'investigation' in formal contexts, like police work or research. Avoid in casual conversations.

Frequently asked questions: Inquiry vs Investigation

What's the difference between "Inquiry" and "Investigation"?

"Inquiry" means: A question or asking about something. "Investigation" means: Looking into something to find out more about it.

When should I use "Inquiry" and "Investigation"?

They can all be used in everyday English.

Are "Inquiry" and "Investigation" the same CEFR level?

"Inquiry" is at B2, "Investigation" is at B2 on the CEFR scale.

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