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

   www.dictionary.com › browse › operation

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   an act or instance, process, or manner of functioning or operating. the state of being operative (usually preceded by in or into ): a rule no longer in operation. the power to act; efficacy, influence, or force. the exertion of force, power, or influence; agency: the operation of alcohol on the mind.

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

   www.vocabulary.com › dictionary › operation

   noun. process or manner of functioning or operating. “the power of its engine determines its operation ” “the plane's operation in high winds” synonyms: functioning, performance. see more. 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”

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

   www.oxfordlearnersdictionaries.com › us › definition

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

5. www.britannica.com › dictionary › operationOperation Definition & Meaning | Britannica Dictionary

   www.britannica.com › dictionary › operation

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   a : a usually small business or organization. The family runs a small farming operation. The company is a billion-dollar operation. b : an activity of a business or organization — usually plural. a company's banking operations.

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

   www.collinsdictionary.com › us › dictionary

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   4 days ago · operation in British English. (ˌɒpəˈreɪʃən ) noun. 1. the act, process, or manner of operating. 2. the state of being in effect, in action, or operative (esp in the phrases in or into operation ) 3. a process, method, or series of acts, esp of a practical or mechanical nature.

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

   dictionary.cambridge.org › dictionary › learner-english

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   an organization or business: a large commercial operation. operation noun [C] (ACTIVITY) 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.

8. 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.