M
M is widely used as a shorthand for concepts ranging from a person or a machine in business settings to fundamental terms such as mass, method or mathematics in scientific and academic contexts.
Medical
Miscellaneous
Molto (Italian coin grade equivalent to Good)
Michael
Meters
Matt
Martin
Mille
Minutes
Mercedes
Megawatt
Milk
The Maintenance
The Multiplicative
Magenta
Macadamia
Manure
MILLI-
1,000
Metre (spelled "meter" in USA)
Community
Governmental
Mechanized
Maneuver
Moronic
Metropolitan
Motor
Maybe
Methyl
Mandatory
Mars
Misunderstood
Model
Milan
Maritime
Mediocre
Maxim
Murder
Maniacal
Murderer
Mach
Maintainability
Major Cycle
Manual
Missing data
Number of Revolutions Required for the Rendezvous
Mud, Muddy
Misdemeanor
International
Academic & Science
Regional
Computing
Maple Common binary file
Matlab M-file Function and commands
Miranda programming language Script file
Mathematica Standard package
Mobile
Mozilla
Meta
Module
Multiply