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.

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

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 …

3 days ago · Defense Secretary Pete Hegseth announced on Thursday evening a new operation dubbed “Southern Spear” to quash “narco-terrorists” in the Western Hemisphere. Hegseth said …

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 …

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

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

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