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/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.
Etymology
Latin 'operatio', from 'operari' meaning 'to work, labor'.
Common Phrases and Expressions
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.
Related Words
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.
Slang Meanings
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.