Function
Part of speech: verb
Definition: to have a function to carry on a function; to be in action
Part of speech: noun
Definition: What something does or is used for. A professional or official position. An official or social occasion. A relation where one thing is dependent on another for its existence, value, or significance. A relation in which each element of the domain is associated with exactly one element of the codomain. A routine that receives zero or more arguments and may return a result. The physiological activity of an organ or body part. The characteristic behavior of a chemical compound.
Example sentence: The proper function of man is to live, not to exist. I shall not waste my days in trying to prolong them. I shall use my time.
Serve
Part of speech: noun
Definition: the act of putting the ball or shuttlecock in play in various gamesA portion of food, a serving
Part of speech: verb
Definition: To work for; to labor in behalf of; to exert one's self continuously or statedly for the benefit of; to do service for; to be in the employment of, as an inferior, domestic, serf, slave, hired assistant, official helper, etc.To obey and worship.To be subordinate to; to act a secondary part under; to appear as the inferior of; to minister to.To be suitor to; to profess love to.To wait upon; to supply the wants of; to attend; specifically, to wait upon at table; to attend at meals; to supply with foodTo bring forward, arrange, deal, or distribute, as a portion of anything, especially of food prepared for eating; -- often with serve up; formerly with serve in.To perform the duties belonging to, or required in or for; hence, to be of use to.To contribute to or conduce to; to promote; to be sufficient for; to satisfyTo answer or be (in the place of something) to.To treat; to behave one's self to; to requite; to act toward.To work; to operate.To bring to notice, deliver, or execute, either actually or constructively, in such manner as the law requiresTo make legal service upon (a person named in a writ, summons, etc.); as, to serve a witness with a subpoena.To pass or spend, as time, esp. time of punishment; as, to serve a term in prison.To copulate with; to verb.To lead off with the first delivery (of the ball) over the net, as in tennis, volleyball, ping pong, etc.To wind spun yarn, or the like, tightly around (a rope or cable, etc.) so as to protect it from chafing or from the weather. See under Serving.To be a servant or a slave; to be employed in labor or other business for another; to be in subjection or bondage; to render menial service.To perform domestic offices; to be occupied with household affairs; to prepare and dish up food, etc.To be in service; to do duty; to discharge the requirements of an office or employment. Specifically, to act in the public service, as a soldier, seaman. etc.To be of use; to answer a purpose; to suffice; to suit; to be convenient or favorable.
Example sentence: There is no greater calling than to serve your fellow men. There is no greater contribution than to help the weak. There is no greater satisfaction than to have done it well.