What does operation mean?

Definitions for operation
ˌɒp əˈreɪ ʃənop·er·a·tion

Here are all the possible meanings and translations of the word operation.

Princeton's WordNet

  1. operationnoun

    the state of being in effect or being operative

    "that rule is no longer in operation"

  2. operationnoun

    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"

  3. operationnoun

    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"

  4. operationnoun

    (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"

  5. operation, military operationnoun

    activity by a military or naval force (as a maneuver or campaign)

    "it was a joint operation of the navy and air force"

  6. operation, surgery, surgical operation, surgical procedure, surgical processnoun

    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. operation, procedurenoun

    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"

  8. operation, functioning, performancenoun

    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"

  9. process, cognitive process, mental process, operation, cognitive operationnoun

    (psychology) the performance of some composite cognitive activity; an operation that affects mental contents

    "the process of thinking"; "the cognitive operation of remembering"

  10. mathematical process, mathematical operation, operationnoun

    (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"

  11. operationnoun

    the activity of operating something (a machine or business etc.)

    "her smooth operation of the vehicle gave us a surprisingly comfortable ride"


  1. operationnoun

    The method by which a device performs its function.

    It is dangerous to look at the beam of a laser while it is in operation.

  2. operationnoun

    The method or practice by which actions are done.

  3. operationnoun

    A planned undertaking.

  4. operationnoun

    A business or organization.

  5. operationnoun

    a surgical procedure.

    She had an operation to remove her appendix.

  6. operationnoun

    a procedure for generating a value from one or more other values (the operands; the value for any particular operands is unique)

  7. operationnoun

    a military campaign (w:Operation Desert Storm)

  8. Etymology: From operari, from opus, operis

Samuel Johnson's Dictionary

  1. Operationnoun

    Etymology: operatio, Lat. operation, French.

    There are in men operations, some natural, some rational, some supernatural, some politick, some finally ecclesiastical. Richard Hooker.

    By all the operations of the orbs,
    From whom we do exist and cease to be,
    Here I disclaim all my paternal care. William Shakespeare, Lear.

    All operations by transmission of spirits and imagination, work at distance and not at touch. Francis Bacon, Nat. Hist.

    Waller’s presence had an extraordinary operation to procure any thing desired. Edward Hyde, b. viii.

    The tree whose operation brings
    Knowledge of good and ill, shun to taste. John Milton, P. Lost.

    If the operation of these salts be in convenient glasses promoted by warmth, the ascending steams may easily be caught and reduced into a penetrant spirit. Boyle.

    The pain and sickness caused by manna, are the effects of its operation on the stomach and guts by the seize, motion and figure of its insensible parts. John Locke.

    Repentance and renovation consist not in the strife, wish, or purpose, but in the actual operations of good life. Henry Hammond.

    That false fruit
    Far other operation first display’d,
    Carnal desire inflaming. John Milton, Par. Lost, b. ix.

    Speculative painting, without the assistance of manual operation, can never attain to perfection, but slothfully languishes; for it was not with his tongue that Apelles performed his noble works. John Dryden, Dufresnoy.

    In this understanding piece of clock-work, his body as well as other senseless matter has colour, warmth and softness. But these qualities are not subsistent in those bodies, but are operations of fancy begotten in something else. Richard Bentley.


  1. Operation

    In its simplest meaning in mathematics and logic, an operation is an action or procedure which produces a new value from one or more input values, called "operands". There are two common types of operations: unary and binary. Unary operations involve only one value, such as negation and trigonometric functions. Binary operations, on the other hand, take two values, and include addition, subtraction, multiplication, division, and exponentiation. Operations can involve mathematical objects other than numbers. The logical values true and false can be combined using logic operations, such as and, or, and not. Vectors can be added and subtracted. Rotations can be combined using the function composition operation, performing the first rotation and then the second. Operations on sets include the binary operations union and intersection and the unary operation of complementation. Operations on functions include composition and convolution. Operations may not be defined for every possible value. For example, in the real numbers one cannot divide by zero or take square roots of negative numbers. The values for which an operation is defined form a set called its domain. The set which contains the values produced is called the codomain, but the set of actual values attained by the operation is its range. For example, in the real numbers, the squaring operation only produces nonnegative numbers; the codomain is the set of real numbers but the range is the nonnegative numbers.

Dictionary of Military and Associated Terms

  1. operation

    1. A military action or the carrying out of a strategic, operational, tactical, service, training, or administrative military mission. 2. The process of carrying on combat, including movement, supply, attack, defense, and maneuvers needed to gain the objectives of any battle or campaign.

British National Corpus

  1. Spoken Corpus Frequency

    Rank popularity for the word 'operation' in Spoken Corpus Frequency: #995

  2. Written Corpus Frequency

    Rank popularity for the word 'operation' in Written Corpus Frequency: #1373

  3. Nouns Frequency

    Rank popularity for the word 'operation' in Nouns Frequency: #241

How to pronounce operation?

How to say operation in sign language?


  1. Chaldean Numerology

    The numerical value of operation in Chaldean Numerology is: 4

  2. Pythagorean Numerology

    The numerical value of operation in Pythagorean Numerology is: 5

Examples of operation in a Sentence

  1. Yin Weimin:

    The economy faces relatively big downward pressures and some firms face difficulties in production and operation, which would lead to insufficient employment.

  2. President Recep Tayyip Erdogan:

    This morning at 4 a.m. an operation started in northern Syria against terror groups which constantly threaten our country, like ISIS and the PYD.

  3. The President:

    Facts First : It is true that the US, at an estimated $ 10,586 per person in 2018, spends twice as much or more per person on health care as Canada( $ 4,974) and most other members of the Organisation for Economic Co-operation and Development( OECD) -- but the US does not spend twice as much as any other country. Switzerland, at $ 7,317 per capita, and Norway, at $ 6,187 per capita, were well above half the US level in 2018, according to OECD figures. Several other countries were above half more narrowly. Senator Sanders could correctly say the US spends more than twice the OECD average. As we've noted before, though, Senator Sanders has been using the same inaccurate wording for more than a decade, even though that wording has been fact checked as inaccurate since 2009. Trump's tax law and the very richSanders said.

  4. President Francois Hollande:

    The battle group, which includes the Charles de Gaulle, will again be deployed to operation Chammal... because we have to strike back at those who attacked us here in January and November 2015.

  5. Abdel Moneim Aboul Fotouh:

    The doctor said that he has to undergo a prostate operation but they are not allowing it, they are deliberately not protecting his health .. If they continue treating him like this, it will lead to the same result as Mursi.

Popularity rank by frequency of use


Translations for operation

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