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1. Dictionary

   Op·er·a·tion

   /ˌäpəˈrāSH(ə)n/

   

   noun

   • 1. the fact or condition of functioning or being active: "the construction and operation of power stations" Similar functioningworkingrunningperformanceactionbehavior
   • ▪ 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. a piece of organized and concerted activity involving a number of people, especially members of the armed forces or the police: "a rescue operation" Similar actionactivityexerciseaffairbusinessundertakingstepenterprisetaskjobprocessproceduremaneuvercampaign
   • ▪ a business organization; a company: "he reopened his operation under a different name" Similar businessenterprisecompanyfirmorganizationconcerninformal:outfitsetup
   • ▪ an activity in which a business is involved: "the company is selling most of its commercial banking operations"
   • ▪ preceding a code name for an organized military or police activity: "Operation Desert Storm"
   • 4. a process in which a number, quantity, expression, etc., is altered or manipulated according to 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 labor on’ (see operate).

   Scrabble Points: 11

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2. 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.

3. 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.

4. www.dictionary.com › browse › operationOPERATION Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › operation

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   the power to act; efficacy, influence, or force. the exertion of force, power, or influence; agency: the operation of alcohol on the mind. a process of a practical or mechanical nature in some form of work or production: a delicate operation in watchmaking.

5. 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.

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

   www.vocabulary.com › dictionary › operation

   Learn the various meanings and uses of the word operation, from medical surgery to mathematical methods. Find synonyms, examples, and related words for operation in this comprehensive dictionary entry.

7. www.collinsdictionary.com › us › dictionaryOPERATION definition in American English | Collins English ...

   www.collinsdictionary.com › us › dictionary

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

8. 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 medicine, business, computers and mathematics. Find synonyms, collocations and related words for operation.

9. 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.

10. dictionary.cambridge.org › dictionary › learner-englishOPERATION | meaning - Cambridge Learner's Dictionary

    dictionary.cambridge.org › dictionary › learner-english

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    an activity that is intended to achieve a particular purpose: a military / peacekeeping operation. a joint operation by French and Spanish police. an operation to smuggle drugs into Britain. in operation. If a machine or system is in operation, it is working or being used: The new rail link is now in operation.

11. 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.