under-manager

noun

1. a person who has control or direction of an institution, business, etc., or of a part, division, or phase of it.
2. a person who manages: the manager of our track team.
3. a person who controls and manipulates resources and expenditures, as of a household.
4. British. (formerly) a theatrical producer.

noun

1. a person who directs or manages an organization, industry, shop, etc
2. a person who controls the business affairs of an actor, entertainer, etc
3. a person who controls the training of a sportsman or team
4. a person who has a talent for managing efficiently
5. law a person appointed by a court to carry on a business during receivership
6. (in Britain) a member of either House of Parliament appointed to arrange a matter in which both Houses are concerned
7. a computer program that organizes a resource, such as a set of files or a database

n.1580s, “one who manages,” agent noun from manage. Specific sense of “one who conducts a house of business or public institution” is from 1705.