A majordomo is a person who speaks, makes arrangements, or takes charge for another. Typically, the term refers to the highest (major) person of a household (domūs or domicile) staff, a head servant who acts on behalf of the owner of a large or significant residence. Similar terms include castellan, concierge, chamberlain, seneschal, mayor of the palace, maître d'hôtel, head butler, and steward. The term also refers, more informally, to someone who oversees the day-to-day responsibilities of a business enterprise.