The meaning of the Acronym UM is...

UM is

• Undefeated Masters
• Utter Madness
• Ultra Maniac

More Meanings For UM:

• User Model
• Unit Of Measure
• University of Miami, Florida
• University of Michigan
• University of Manitoba
• The Ultra Mirage
• Universal Mediterranea
• Universal Mgf
• Union Meeting
• Utah Medical Products, Inc.
• Unsolved Mysteries
• Ubiquitous Museum
• Universal Message
• United Methodist
• Undefeated Masters

UM is also in:

• Chemistry
• Electronics
• Firms
• General
• Media
• Museums
• NYSE Symbols
• Religion
• Sports
• Universities