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function

[ fuhngk-shuhn ]
/ ˈfʌŋk ʃən /
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See synonyms for: function / functioned / functioning / functions on Thesaurus.com

noun
verb (used without object)
to perform a specified action or activity; work; operate: The computer isn't functioning now. He rarely functions before noon.
to have or exercise a function; serve: In earlier English the present tense often functioned as a future. This orange crate can function as a chair.
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Origin of function

1525–35; <Latin functiōn- (stem of functiō) a performance, execution, equivalent to funct(us) (past participle of fungī) performed, executed + -iōn--ion

OTHER WORDS FROM function

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use function in a sentence

British Dictionary definitions for function

function
/ (ˈfʌŋkʃən) /

noun
the natural action or intended purpose of a person or thing in a specific rolethe function of a hammer is to hit nails into wood
an official or formal social gathering or ceremony
a factor dependent upon another or other factorsthe length of the flight is a function of the weather
Also called: map, mapping maths logic a relation between two sets that associates a unique element (the value) of the second (the range) with each element (the argument) of the first (the domain): a many-one relation. Symbol: f(x) The value of f(x) for x = 2 is f(2)
verb (intr)
to operate or perform as specified; work properly
(foll by as) to perform the action or role (of something or someone else)a coin may function as a screwdriver

Derived forms of function

functionless, adjective

Word Origin for function

C16: from Latin functiō, from fungī to perform, discharge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for function

function
[ fŭngkshən ]

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.
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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Cultural definitions for function

function

In mathematics, a quantity whose value is determined by the value of some other quantity. For example, “The yield of this field is a function of the amount of fertilizer applied” means that a given amount of fertilizer will yield an amount of whatever crop is growing.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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