operation

phonetic symbol: / àpɚéɪʃən / 

operation - English Dictionary

[ noun ]
■ the activity of operating something (a machine or business etc.)
e.g.)
・her smooth operation of the vehicle gave us a surprisingly comfortable ride

[ noun ]
■ a planned activity involving many people performing various actions
e.g.)
・they organized a rescue operation
・the biggest police operation in French history
・running a restaurant is quite an operation
・consolidate the companies various operations

[ noun ]
■ a process or series of acts especially of a practical or mechanical nature involved in a particular form of work
e.g.)
・the operations in building a house
・certain machine tool operations
procedure

[ noun ]
■ a medical procedure involving an incision with instruments
■ performed to repair damage or arrest disease in a living body
e.g.)
・they will schedule the operation as soon as an operating room is available
surgery , surgical operation , surgical procedure , surgical process

[ noun ]
■ (mathematics) calculation by mathematical methods
e.g.)
・they were learning the basic operations of arithmetic
mathematical operation , mathematical process

[ noun ]
■ activity by a military or naval force (as a maneuver or campaign)
e.g.)
・it was a joint operation of the navy and air force
military operation

[ noun ]
■ a business especially one run on a large scale
e.g.)
・a large-scale farming operation
・a multinational operation
・they paid taxes on every stage of the operation
・they had to consolidate their operations

[ noun ]
■ (psychology) the performance of some composite cognitive activity
■ an operation that affects mental contents
e.g.)
・the cognitive operation of remembering
cognitive operation , cognitive process , mental process , process

[ noun ]
■ (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)
e.g.)
・it can perform millions of operations per second

[ noun ]
■ process or manner of functioning or operating
e.g.)
・the power of its engine determines its operation
・the plane's operation in high winds
functioning , performance

[ noun ]
■ the state of being in effect or being operative
e.g.)
・that rule is no longer in operation

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