the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose | sterile member of a colony of social insects that forages for food and cares for the larvae |
a person or thing that is a resource that helps make something easier or possible to do | a person who works at a specific occupation |
a means of serving | a member of the working class (not necessarily employed) |
a person who contributes to the fulfillment of a need or furtherance of an effort or purpose | a person who acts and gets things done |