operation

/,ɔpə'reiʃn/
Học thuật
Thân thiện
operation

The surgeon performs a delicate operation in the operating room.

Definition
  1. Noun:
    • The act or process of operating, functioning, or working: This refers to the state of being active or the way something functions.
    • A planned activity or series of acts, especially of a practical, military, or business nature: This refers to a coordinated effort involving many people to achieve a specific goal.
    • A surgical procedure: A medical procedure performed with instruments to repair damage or treat disease in a living body.
    • A mathematical process or calculation: A basic process like addition, subtraction, multiplication, or division.
    • The condition of being in effect or active: The state in which a rule, system, or machine is functioning.
Examples of Usage
  • Noun:
    • The smooth operation of the factory depends on skilled workers.
    • The military conducted a covert operation behind enemy lines.
    • She is recovering well from her knee operation.
    • Addition and subtraction are basic arithmetic operations.
    • The new law has been in operation for six months.
Advanced Usage
  • "to come into operation": to begin to function or be applied.
    • The new regulations will come into operation next week.
  • "in operation": functioning, active, or in effect.
    • The emergency plan is now in operation.
  • "a joint operation": an activity undertaken by two or more groups working together.
    • The drug bust was a joint operation between federal and local police.
Variants and Related Words
  • Operate (verb): to function or to control the functioning of something.
    • Do you know how to operate this machine?
  • Operational (adjective): ready for use; functional.
    • The new airport is now fully operational.
  • Operator (noun): a person who operates equipment or manages an operation.
    • She works as a computer operator.
Synonyms
  • Functioning: the action or process of working.
  • Procedure: an established or official way of doing something.
  • Campaign: a series of military operations or planned activities with a particular aim.
  • Surgery: medical treatment involving an incision.
Related Phrases (Phrasal Verbs)
  • Not applicable for this noun. The word "operation" is primarily a noun. Related actions use the verb "operate" (e.g., , ).
Related Idioms
  • A well-oiled operation: an activity or organization that runs very smoothly and efficiently.
    • The event was a success thanks to a well-oiled operation.
  • A covert operation: a secret mission or activity.
    • The spy was involved in a covert operation.
operation

The surgeon performs a delicate operation in the operating room.

Noun
  1. the activity of operating something (a machine or business etc.)
    • her smooth operation of the vehicle gave us a surprisingly comfortable ride
  2. (mathematics) calculation by mathematical methods
    • the problems at the end of the chapter demonstrated the mathematical processes involved in the derivation
    • they were learning the basic operations of arithmetic
  3. (psychology) the performance of some composite cognitive activity; an operation that affects mental contents
    • the process of thinking
    • the cognitive operation of remembering
  4. process or manner of functioning or operating
    • the power of its engine determines its operation
    • the plane's operation in high winds
    • they compared the cooking performance of each oven
    • the jet's performance conformed to high standards
  5. a process or series of acts especially of a practical or mechanical nature involved in a particular form of work
    • the operations in building a house
    • certain machine tool operations
  6. a medical procedure involving an incision with instruments; performed to repair damage or arrest disease in a living body
    • they will schedule the operation as soon as an operating room is available
    • he died while undergoing surgery
  7. activity by a military or naval force (as a maneuver or campaign)
    • it was a joint operation of the navy and air force
  8. (computer science) data processing in which the result is completely specified by a rule (especially the processing that results from a single instruction)
    • it can perform millions of operations per second
  9. a planned activity involving many people performing various actions
    • they organized a rescue operation
    • the biggest police operation in French history
    • running a restaurant is quite an operation
    • consolidate the companies various operations
  10. a business especially one run on a large scale
    • a large-scale farming operation
    • a multinational operation
    • they paid taxes on every stage of the operation
    • they had to consolidate their operations
  11. the state of being in effect or being operative
    • that rule is no longer in operation