Meaning & Definition of Function in English

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)

2. What something is used for

• "The function of an auger is to bore holes"

• "Ballet is beautiful but what use is it?"

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"

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"

5. A formal or official social gathering or ceremony

• "It was a black-tie 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"

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

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"

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"

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

• "His wife officiated as his private secretary"