1a person responsible for controlling or administering an organization or group of staff:the manager of a bar
a person who controls the professional and business activities of a performer, sports player, group of musicians, etc.:if I was his manager I would offer Lewis $8 m for the fight
a person in charge of the activities, tactics, and training of a sports team:the team manager
2 [with adjective] a person regarded in terms of their skill in managing resources, especially those of a household:she was a good manager, and could make a meal out of nothing
3 [with modifier] Computing a program or system that controls or organizes a peripheral device or process:a file manager
4(in the Houses of Parliament and the US Senate) a member of a committee appointed by one house to confer with a similar committee of the other house.