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 : a process in which a doctor cuts into someone's body in order to repair or remove a damaged or diseased part; 2 : a usually small business or organization

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

Definition of operation noun in Oxford Advanced Learner's 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 …

2 days ago · The State of Illinois has filed a lawsuit against the U.S. Department of Homeland Security, alleging federal agents used unlawful and dangerous tactics during Operation …

1 day ago · Noun operation (countable and uncountable, plural operations) (uncountable) The method by which a device performs its function.

Sep 8, 2025 · DHS announced Operation Midway Blitz in honor of Katie Abraham who was killed in a drunk driving hit-and-run car wreck caused by criminal illegal alien Julio Cucul-Bol in …

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 …

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 …