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. The fact of operating or being active:
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. Definition of operation noun in oxford advanced learner's dictionary.
Jan 20, 2026noun operation (countable and uncountable, plural operations) (uncountable) the method by which a device performs its function. A delicate operation in watchmaking. An act or instance, process, or manner of functioning or operating.
See examples of operation used in a sentence. When a patient has an operation, a surgeon cuts open their body in order to remove, replace, or repair a diseased or damaged part. Charles was at the clinic recovering from an operation on his arm.
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