serve no purpose

: to be a servant

: to do military or naval service

: to assist a celebrant as server at mass

: the act or action of putting the ball or shuttlecock in play in various games (such as volleyball, badminton, or tennis)

: something set up as an object or end to be attained : intention

: resolution, determination

: a subject under discussion or an action in course of execution

: to propose as an aim to oneself