a person who contributes to the fulfillment of a need or furtherance of an effort or purpose

work for or be a servant to

be present at (meetings, church services, university), etc.

one paid to accompany or assist or live with another

an attendant who takes care of baggage

an orderly assigned to serve a British military officer

someone employed as an errand boy and luggage carrier around hotels

an unmarried woman who attends the bride at a wedding