steward

a person who manages another's property or financial affairs; one who administers anything as the agent of another or others.

a person who has charge of the household of another, buying or obtaining food, directing the servants, etc.

an employee who has charge of the table, wine, servants, etc., in a club, restaurant, or the like.

a person who attends to the domestic concerns of persons on board a vessel, as in overseeing maids and waiters.

an employee on a ship, train, or bus who waits on and is responsible for the comfort of passengers, takes orders for or distributes food, etc.

a flight attendant.

a person appointed by an organization or group to supervise the affairs of that group at certain functions.

U.S. Navy. a petty officer in charge of officer's quarters and mess.

to act as steward of; manage.

to act or serve as steward.