Inquiry vs Looking up

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

Inquiry

Top 3,000 (common)B2noun

Looking up

Top 1,000 (very common)
Most common: Looking up
 InquiryLooking up
Pronunciation🇬🇧 /["/ɪnˈkwaɪəri/"]/🇺🇸 /["/ˈɪnkwəri//ɪnˈkwaɪəri/"]/🇬🇧 //ˈlʊkɪŋ ʌp//🇺🇸 //ˈlʊkɪŋ ʌp//
MeaningA question or asking about something.Searching for information in a reference source.
ExampleThe teacher encouraged an inquiry into the reasons behind climate change.I was looking up the definition of the word.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 1,000 (very common)
CEFR levelB2-
Part of speechnoun
Collocationsmake an inquiry, conduct an inquiry, primary inquiry, formal inquiry, inquiry processlooking up information, looking up a word, looking up data
Antonymsanswer, responselooking down, declining, worsening
Common mistakesUsed incorrectly as 'inquiries' instead of 'inquiry' when talking about one question., Confused with 'enquiry'; remember 'inquiry' is more formal., Not using 'make' to form the phrase 'make an inquiry'.Confused with 'looking at' (means observing instead of searching)., Using it in the wrong tense, e.g., 'looked up' for present actions., Omitting the object, e.g., saying only 'looking up' without what is being searched.
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 'looking up' in academic or casual contexts. It's suitable for searching facts, but not for casual conversation.

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Looking up

Frequently asked questions: Inquiry vs Looking up

What's the difference between Inquiry and Looking up?

Inquiry: A question or asking about something. Looking up: Searching for information in a reference source.

Which is more common: Inquiry and Looking up?

Looking up is the most common in everyday English.

Can you show an example of each?

Inquiry: The teacher encouraged an inquiry into the reasons behind climate change. Looking up: I was looking up the definition of the word.

Can I use Inquiry and Looking up interchangeably?

Not always. Inquiry and Looking up 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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