Operation

/ˌɒp.əˈreɪ.ʃən/

Meaning & Definition

noun

The process of functioning or acting.

The operation of the new system will begin next month.

A procedure or series of actions conducted to achieve a particular goal.

The military operation was designed to secure the area.

A medical procedure, especially surgery.

He had a successful operation to remove his appendix.

Mathematical processes such as addition, subtraction, multiplication, or division.

In mathematics, addition is an operation that combines numbers.

Latin 'operatio', from 'operari' meaning 'to work, labor'.

under operation

In the process of being worked on or carried out.

military operation

A coordinated military action.

operation manual

A document providing instructions for the operation of a system or device.

in operation

Currently functioning or active.

operator

A person or entity that operates a particular machine or process.

operation room

A room where surgical operations are performed.

operational

Relating to the functioning or operation of a system.

Going for a big score or endeavor.

We're about to pull off an operation that could change everything.

Referring to a complicated task or plan.

It’s a pretty big operation to get everyone organized for the event.