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1. Dictionary

   operation

   /ˌɒpəˈreɪʃn/

   noun

   • 1. the action of functioning or the fact of being active or in effect: "restrictions on the operation of market forces" Similar functioningworkingrunningperformanceactionbehaviour
   • ▪ an active process; a discharge of a function: "the operations of the mind"
   • 2. an act of surgery performed on a patient: "I've never felt better since my bypass operation" Similar surgerysurgical operationsurgical interventionmajor surgeryminor surgery
   • 3. an organized activity involving a number of people: "a rescue operation" Similar actionactivityexerciseaffairbusinessundertakingstepenterprisetaskjobprocessproceduremanoeuvrecampaign
   • ▪ a business organization; a company: "he reopened his operation under a different name" Similar businessenterprisecompanyfirmorganizationconcerninformal:outfitset-up
   • ▪ an activity in which a business is involved: "the company is selling most of its commercial banking operations"
   • 4. a process in which a number, quantity, expression, etc., is altered or manipulated according to set formal rules, such as those of addition, multiplication, and differentiation.

   Word Origin late Middle English: via Old French from Latin operatio(n-), from the verb operari ‘expend labour on’ (see operate).

   Scrabble Points: 11

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2. dictionary.cambridge.org › dictionary › englishOPERATION | English meaning - Cambridge Dictionary

   dictionary.cambridge.org › dictionary › english

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

3. www.merriam-webster.com › dictionary › operationOperation Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › operation

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   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.

4. dictionary.cambridge.org › us › dictionaryOPERATION | definition in the Cambridge English Dictionary

   dictionary.cambridge.org › us › dictionary

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

5. www.collinsdictionary.com › dictionary › englishOPERATION definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   Learn the meaning of operation as a noun in different contexts, such as business, surgery, mathematics, and military. See synonyms, pronunciation, and usage examples from various sources.

6. www.dictionary.com › browse › operationOPERATION Definition & Meaning - Dictionary.com

   www.dictionary.com › browse › operation

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   Operation is a noun that means an act or process of functioning, operating, or acting. It can also refer to a surgical procedure, a mathematical process, a computer action, or a military campaign. See different meanings and usage examples of operation.

7. www.thefreedictionary.com › operationOperation - definition of operation by The Free Dictionary

   www.thefreedictionary.com › operation

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   1. The act or process of operating or functioning. 2. The state of being operative or functional: a factory in operation. 3. A process or series of acts involved in a particular form of work: the operation of building a house. 4. An instance or method of efficient, productive activity: That restaurant is quite an operation. 5.

8. www.oxfordlearnersdictionaries.com › us › definitionoperation noun - Definition, pictures, pronunciation and usage...

   www.oxfordlearnersdictionaries.com › us › definition

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   operation. noun. OPAL W OPAL S. /ˌɒpəˈreɪʃn/ /ˌɑːpəˈreɪʃn/ medical. (also British English, informal op) [countable] the process of cutting open a part of a person’s body in order to remove or repair a damaged part. Will I need to have an operation? He underwent a three-hour heart operation.

9. dictionary.cambridge.org › dictionary › learner-englishMeaning of operation – Learner’s Dictionary - Cambridge...

   dictionary.cambridge.org › dictionary › learner-english

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   Learn the meaning of operation in different contexts, such as medical treatment, organization, activity, and machine or system. See translations of operation in various languages and related words.

10. www.oxfordlearnersdictionaries.com › us › definitionoperation noun - Definition, pictures, pronunciation and usage...

    www.oxfordlearnersdictionaries.com › us › definition

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    Learn the meaning, pronunciation and usage of the word operation in different contexts, such as medical, business, computer, military and mathematics. Find out how to use operation in sentences and idioms with the Oxford Advanced Learner’s Dictionary app.

11. www.vocabulary.com › dictionary › operationOperation - Definition, Meaning & Synonyms - Vocabulary.com

    www.vocabulary.com › dictionary › operation

    noun. a process or series of acts especially of a practical or mechanical nature involved in a particular form of work. “the operations in building a house” “certain machine tool operations ” synonyms: procedure. see more. noun. the activity of operating something (a machine or business etc.)