The meaning of the Acronym MUM is...

MUM is

• Mother
• Quiet

More Meanings For MUM:

• Crisanthemum
• Maharishi University of Management
• Maharishi University of Management
• Money Under Management
• Mixed Up Mother
• Mathematical Ulterior Motives
• Maintenance of Union Membership
• Murder under the Microscope
• Mass Memory Unit Manager
• Murder under the Microscope
• Caledonia - Mumford
• Modularization Unitization And Metrication
• Mother
• Quiet
• Merge Using Moments

MUM is also in:

• Accounting
• Chat
• Educational
• FBI Files
• NASA
• Police
• Positions
• State and Local
• Unfiled
• Unions
• Universities
• US Government