operation
/ˌɒpəˈɹeɪʃən/
The method by which a device performs its function.
The method or practice by which actions are done.
The act or process of operating; agency; the exertion of power, physical, mechanical, or moral.
A planned undertaking.
The Katrina relief operation was considered botched.
A business or organization.
They run a multinational produce-supply operation.
A surgical procedure.
She had an operation to remove her appendix.
A procedure for generating a value from one or more other values (the operands).
A military campaign (e.g. Operation Desert Storm)
Effect produced; influence.