Function definition

fŭngkshən
The action or purpose for which a person or thing is suited or employed, especially:
  • A person's role or occupation.
    In my function as chief editor.
  • (biology) The physiological activity of an organ or body part.
    The heart's function is to pump blood.
  • (computers) A procedure within an application.
noun
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Function is defined as an assigned duty or position within a company.

An example of function is a mail room attendant.

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Function means a formal event or ceremony.

An example of function is a company Christmas party.

noun
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A variable so related to another that for each value assumed by one there is a value determined for the other.
noun
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A rule of correspondence between two sets such that there is exactly one element in the second set assigned to each element in the first set.
noun
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A professional or official position.
noun
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To have or perform a function; serve.

Functioned as ambassador.

verb
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To act in a required or expected manner; work.
verb
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The special action or physiological property of an organ or a body part.
noun
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The definition of function is the normal action of something or how something works.

An example of function is how a bike is pedaled forward.

noun
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(math.) An association between two sets in which each element of one set has one assigned element in the other set: any selected element becomes the independent variable and its associated element is the dependent variable.

Y = f(x) means y is a function of x.

noun
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An operational instruction for programming an electronic device, as a digital watch, computer, etc.; also, an operation performed by such a device as a result of such an instruction.
noun
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What something does or is used for.
noun
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A relation where one thing is dependent on another for its existence, value, or significance.
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(mathematics) A relation in which each element of the domain is associated with exactly one element of the codomain.
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(computing) A routine that receives zero or more arguments and may return a result.
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(biology) The physiological activity of an organ or body part.
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(chemistry) The characteristic behavior of a chemical compound.
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(anthropology) The role of a social practice in the continued existence of the group.
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(intransitive) To have a function.
verb
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(intransitive) To carry on a function; to be in action.
verb
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A special duty or performance required in the course of work or activity.

The function of an auditor, the function of the brakes.

noun
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Occupation or employment.
noun
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To deal with or overcome the challenges of everyday life.

For weeks after his friend's funeral he simply could not function.

verb
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An official ceremony or a formal social occasion.

Disliked attending receptions and other company functions.

noun
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The normal or characteristic action of anything; esp., any of the natural, specialized actions of a system, organ, or part of an animal or plant.

The procreative function.

noun
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A formal ceremony or elaborate social occasion.
noun
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Something closely related to another thing and dependent on it for its existence, value, or significance.

Growth is a function of nutrition.

noun
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A thing that depends on and varies with something else.
noun
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Any of the roles that a linguistic form can fulfill in an utterance.
noun
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An action which is part of a series leading to a resulting action.
noun
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To have a function; serve or be used (as)
verb
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Something closely related to another thing and dependent on it for its existence, value, or significance, such as growth resulting from nutrition.
noun
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A relationship between two sets that matches each member of the first set with a unique member of the second set. Functions are often expressed as an equation, such as y = x + 5, meaning that y is a function of x such that for any value of x, the value of y will be 5 greater than x.
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A quantity whose value depends on the value given to one or more related quantities. For example, the area of a square is a function of the length of its sides.
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Other Word Forms

Noun

Singular:
function
Plural:
functions

Origin of function

  • Latin fūnctiō fūnctiōn- performance, execution from fūnctus past participle of fungī to perform, execute

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle French function, from Old French fonction, from Latin functionem, accusative of functiō (“performance, execution”), from functus perfect participle of fungor (“I perform, I execute, I discharge”).

    From Wiktionary