There is no full form, a manager is a manager, and the term is not an abbreviation.
manager
to be rather great at literature.
Dupty general manager
asst. material manager
Internet download manager
Regional business manager
Manager of department
vtm - vehicle test manager
Marketing manager grade scale
LOM-- Sun Light out Manager ALOM-Advanced Light Out Manager ILOM - Integrated Light out Manager
NTLM new technology LAN manager Madan