1. (

• function ,
• mathematical_function ,
• single-valued_function ,
• map ,
• mapping

) (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. (

• function ,
• purpose ,
• role ,
• use

) what something is used for; "the function of an auger is to bore holes"; "ballet is beautiful but what use is it?" ;

3. (

• function ,
• office ,
• part ,
• role

) 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. (

• function ,

) 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. (

• function

) a formal or official social gathering or ceremony; "it was a black-tie function" ;

6. (

• affair ,
• occasion ,
• social_occasion ,
• function ,
• social_function

) 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. (

• routine ,
• subroutine ,
• subprogram ,
• procedure ,
• function

) a set sequence of steps, part of larger computer program ;

1. (

• function ,
• work ,
• operate ,
• go ,
• run

) 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 ,
• function ,

) 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. (

• officiate ,
• function

) perform duties attached to a particular office or place or function; "His wife officiated as his private secretary" ;