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.

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

Operation definition: an act or instance, process, or manner of functioning or operating.. See examples of OPERATION used in a sentence.

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 …

A military operation (op) is the coordinated military actions of a state, or a non-state actor, in response to a developing situation. These actions are designed as a military plan to resolve the situation in the …

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

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.

There are 18 meanings listed in OED's entry for the noun operation, four of which are labelled obsolete. See ‘Meaning & use’ for definitions, usage, and quotation evidence.

Sep 8, 2025 · DHS said the Immigration and Customs Enforcement operation will target people in the country illegally who commit crimes and "flocked to Chicago and Illinois." Hundreds of Homeland …

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", …