MU
MU is most often used for Manchester United, the English football club, but also denotes the Marvel Universe, the animated film Monsters University, and, in everyday language, makeup or markup in business contexts.
Medical
Miscellaneous
Marvel Universe
Marginal Utility
Medium Universal
Mother Unit
Mass Units
Mutual Understand
Manchester Useless
Monitor Units
Memory Units
Maintainence Update
Member Update
Mail Unicode
Maquis Universal
Muonic Units
Maddness United
Moveable Unit
Massive Urethra
Members Update
Math Urban
Make Up
Measuring Up
Morpholine Urea
Master Units
Manchester United
Man Up
Miniature unit
Measuring Unit
Community
Governmental
International
Academic & Science
Macquarie University
Miskatonic University
Marquette University
Mole University
Memorial Union
Monsanto University
Marymount University
Methedrine University
Middlesex University
Magadh University
Mangalore University
Mysore University
University of Missouri-Columibia
Marmara University
Marshall University
Regional
Computing
Multi-User
Maintenance Update
Message Utilities
Mysterious Utility
Master Unit
Media Unit
Message Unit
Menu (Quattro Pro)