Meaning : 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.
Meaning : 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.
Synonyms : serve
Meaning : Perform duties attached to a particular office or place or function.
His wife officiated as his private secretary.
Synonyms : officiate
Meaning : A relation such that one thing is dependent on another.
Height is a function of age.
Price is a function of supply and demand.
Meaning : A formal or official social gathering or ceremony.
It was a black-tie function.