function >> /ˈfəŋ(k)ʃ(ə)n/
Definition: [noun] An activity or purpose natural to or intended for a person or thing.
Example: bridges perform the function of providing access across water
Definition: [noun] A relationship or expression involving one or more variables.
Example: the function (bx + c)
Definition: [noun] A thing dependent on another factor or factors.
Example: class shame is a function of social power
Definition: [noun] A large or formal social event or ceremony.
Example: he was obliged to attend party functions
Definition: [intransitive verb] Work or operate in a proper or particular way.
Example: her liver is functioning normally