May 16, 2026 · 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 definition: an act or instance, process, or manner of functioning or operating. See examples of operation used in a sentence.

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

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

1. an act or instance, process, or manner of functioning or operating.

Operation is a battery-operated game of physical skill that tests players' hand-eye coordination and fine motor skills.

Find 97 different ways to say OPERATION, along with antonyms, related words, and example sentences at Thesaurus.com.

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.

A mathematical operation is a process that takes one or more numbers and produces a new result. The four basic operations are addition, subtraction, multiplication, and division.