1) the manager of household or of household affairs
    1a) esp. a steward, manager, superintendent (whether free-born or
        as was usually the case, a freed-man or a slave) to whom the
        head of the house or proprietor has intrusted the management
        of his affairs, the care of receipts and expenditures, and the
        duty of dealing out the proper portion to every servant and
        even to the children not yet of age
    1b) the manager of a farm or landed estate, an overseer
    1c) the superintendent of the city's finances, the treasurer of a
        city (or of treasurers or quaestors of kings)
 2) metaph. the apostles and other Christian teachers and bishops
    and overseers