operation

word

/ˌɑpɝˈeɪʃən/
op-uh-RAY-shuhn
/ˌɒpəɹˈeɪʃən/
op-uh-RAY-shuhn

Definition

An operation is a planned activity or process done to achieve a result, such as a business activity, a military action, or the way a machine works. It also commonly means a surgical procedure done by a doctor.

Usage & Nuances

Very common in formal and semi-formal contexts. Common collocations include 'perform an operation', 'business operation(s)', 'military operation', and 'in operation'. Do not confuse it with 'surgery': 'surgery' is usually the medical field or the place, while 'operation' is often the actual procedure.

Example Sentences

It was a small operation, but everyone knew their job.

natural

The doctor will operate tomorrow.

basic

The factory is now in operation.

basic

The company has a large operation in Mexico.

basic

After the operation, she needed a few weeks to recover.

natural

Our online operation grew fast once we started advertising.

natural