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  1. OPERATION Definition & Meaning - Merriam-Webster

    The meaning of OPERATION is performance of a practical work or of something involving the practical application of principles or processes. How to use operation in a sentence.

  2. OPERATION | definition in the Cambridge English Dictionary

    OPERATION meaning: 1. the fact of operating or being active: 2. the way that parts of a machine or system work…. Learn more.

  3. Operation - Definition, Meaning & Synonyms | Vocabulary.com

    Operation can refer to medical surgery, a military campaign, or mathematical methods, such as multiplication and division. Operation comes from the Latin word opus (“work”) and can refer to a …

  4. operation noun - Definition, pictures, pronunciation and usage notes ...

    Definition of operation noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

  5. operation - Wiktionary, the free dictionary

    Nov 6, 2025 · operation (countable and uncountable, plural operations) (uncountable) The method by which a device performs its function.

  6. operation - WordReference.com Dictionary of English

    a process of a practical or mechanical nature in some form of work or production: a delicate operation in watchmaking. a course or procedure of productive or industrial activity: building operations.

  7. OPERATION - Meaning & Translations | Collins English Dictionary

    An operation is the process of cutting open someone's body in order to repair, replace, or remove a damaged part.

  8. OPERATION | meaning - Cambridge Learner's Dictionary

    OPERATION definition: 1. If you have an operation, a doctor cuts your body to remove or repair part of it: 2. an…. Learn more.

  9. Operation ID – Main Street Ministries – Houston, TX

    Will Operation ID get my ID for me? No. Operation ID helps you gather the documents and funding needed to obtain an ID, but you are responsible for going to the Department of Public Safety (DPS) …

  10. OPERATION - Definition & Meaning - Reverso English Dictionary

    operation definition: method or practice by which actions are done. Check meanings, examples, usage tips, pronunciation, domains, and related words. Discover expressions like "shoestring operation", …