English Reference
noun · adjective

operative

n. · adj.
US /ˈɑpɝətɪv/ UK /ˈɒpəɹətˌɪv/ op·er·a·tive UK spelling operatives

  1. 01 C1 Advanced Formal

    n.a worker who has a specific skill or job, especially in a factory or technical field.

    n.a worker, typically one with a specific technical skill or function within an industrial or mechanical context.

    Simple

    The factory hired several new operatives to manage the assembly line.

    In context

    Industrial operatives were required to undergo rigorous safety training before being permitted to handle the high-pressure machinery.

  2. 02 B2 Upper Intermediate

    n.someone who works secretly for a government or a large organization, like a spy.

    n.a person who works for an organization, especially an intelligence agency, to carry out secret or specialized tasks.

    Simple

    The intelligence operative spent months undercover in the foreign city.

    In context

    The agency denied any knowledge of the operative's activities after the mission was compromised by local authorities.

  3. 03 B2 Upper Intermediate

    adj.ready to use or currently working.

    adj.functioning or in working order; currently active or in effect.

    Simple

    The new security system will be fully operative by next Monday.

    In context

    The treaty remains operative despite the recent diplomatic tensions between the two neighboring nations.

  4. 04 C1 Advanced Formal

    adj.the most important word in a sentence that explains the real meaning.

    adj.describing a word or phrase that is the most significant or influential in a particular context.

    Simple

    He said he might help, but 'might' is the operative word there.

    In context

    In the contract's termination clause, 'unforeseen' is the operative word that determines whether the deposit is refundable.

    Usage

    Usually used in the phrase 'the operative word'.

  5. 05 C1 Advanced Technical Medicine

    adj.relating to medical operations or surgery.

    adj.pertaining to or consisting of a surgical operation.

    Simple

    The patient's operative wound is healing well after the procedure.

    In context

    The surgeon reviewed the operative report to confirm that no complications had occurred during the bypass.

This month he started a full-time job there as a warehouse operative, and has been praised for his work from his bosses.

The Guardian· 16 Aug 2026

That year, a Russian helicopter pilot who defected was killed in Spain – Russian operatives were the prime suspects.

The Guardian· 13 Aug 2026

From Middle English operative, operatyfe, from Middle French operatif (modern French opératif) or its etymon Latin operātīvus. By surface analysis, operate + -ive.

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

This entry
Origin Latin operātīvus
Level C1 · Advanced
Frequency Frequent
Updated