English Reference
noun

inquiry

n.
US /ˌɪnˈkwaɪˌɹi/ UK /ɪnkwˈaɪəɹi/ in·quiry UK spelling inquiries, inquiry's

  1. 01 B2 Upper Intermediate

    a request for information or a question you ask to find out more about something.

    the act of seeking information by asking questions; a specific query or request for data.

    Simple

    We received an inquiry from a customer about the new delivery times.

    In context

    The office was flooded with inquiries regarding the sudden change in the company's privacy policy.

    Usage

    Often used with the preposition 'about' or 'into'.

  2. 02 C1 Advanced Formal Law

    an official process to find out the facts about something, like an accident or a crime.

    a formal or systematic investigation into a matter of public or legal concern.

    Simple

    The government has launched an inquiry into the cause of the train crash.

    In context

    A public inquiry was commissioned to determine whether the local authorities had followed safety protocols before the fire.

    Usage

    Commonly follows the verbs 'launch', 'conduct', or 'hold'.

  3. 03 C1 Advanced Academic Science

    the process of studying a subject carefully to find out the truth.

    the systematic search for truth, knowledge, or principles through study and research.

    Simple

    Scientific inquiry helps us understand how the universe began.

    In context

    The professor's work is a masterpiece of historical inquiry, shedding new light on the social structures of the medieval period.

Usage inquiries please · scientific inquiry · inquiry into media

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Phys.org· 15 Aug 2026

From Middle English enquery, from the Old French verb enquerre, from Latin inquīrō, composed of in- (“in, at, on; into”) + quaerō (“I seek, look for”), of uncertain origin, but possibly from Proto-Italic kʷaizeō, from Proto-Indo-European kʷeh₂- (“to acquire”). Later respelled to conform to the original Latin spelling, as opposed to the Old French spelling.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin ine-pro *kʷeh₂-
Level B2 · Upper Intermediate
Frequency Common
Updated