a person or business that represents, or that manages or arranges the affairs of, another or others

person representing an organization or person in business

a person who must work hard and long at unpleasant or uninteresting task

slave, very hard worker

a person who does jobs for an important person as if he or she is a servant

servant

a girl; a young, unmarried woman; a woman who does cleaning in a hotel etc

servant

a person who finds it difficult to stop working, e.g. a business person, writer, researcher

slave, very hard worker