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Meaning & Definition of Function in English

English

Function

/fəŋkʃən/

noun

1. (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

    synonym:
  • function
  • ,
  • mathematical function
  • ,
  • single-valued function
  • ,
  • map
  • ,
  • mapping

2. What something is used for

  • "The function of an auger is to bore holes"
  • "Ballet is beautiful but what use is it?"
    synonym:
  • function
  • ,
  • purpose
  • ,
  • role
  • ,
  • use

3. The actions and activities assigned to or required or expected of a person or group

  • "The function of a teacher"
  • "The government must do its part"
  • "Play its role"
    synonym:
  • function
  • ,
  • office
  • ,
  • part
  • ,
  • role

4. A relation such that one thing is dependent on another

  • "Height is a function of age"
  • "Price is a function of supply and demand"
    synonym:
  • function

5. A formal or official social gathering or ceremony

  • "It was a black-tie function"
    synonym:
  • function

6. A vaguely specified social event

  • "The party was quite an affair"
  • "An occasion arranged to honor the president"
  • "A seemingly endless round of social functions"
    synonym:
  • affair
  • ,
  • occasion
  • ,
  • social occasion
  • ,
  • function
  • ,
  • social function

7. A set sequence of steps, part of larger computer program

    synonym:
  • routine
  • ,
  • subroutine
  • ,
  • subprogram
  • ,
  • procedure
  • ,
  • function

verb

1. Perform as expected when applied

  • "The washing machine won't go unless it's plugged in"
  • "Does this old car still run well?"
  • "This old radio doesn't work anymore"
    synonym:
  • function
  • ,
  • work
  • ,
  • operate
  • ,
  • go
  • ,
  • run

2. Serve a purpose, role, or function

  • "The tree stump serves as a table"
  • "The female students served as a control group"
  • "This table would serve very well"
  • "His freedom served him well"
  • "The table functions as a desk"
    synonym:
  • serve
  • ,
  • function

3. Perform duties attached to a particular office or place or function

  • "His wife officiated as his private secretary"
    synonym:
  • officiate
  • ,
  • function

Examples of using

The derivative of a constant function is always zero.
The function f(x) = π² is a constant function.
Rats also have a function. They help to clean the pipes.