M3

M3 or M-3 may be:

Globular Cluster M3, a Messier object in the constellation Canes Venatici
M3 motorway, a highway in England
M3 motorway (Northern Ireland), a spur of the M2 motorway (Northern Ireland)
M3 motorway (Republic of Ireland), a proposed upgrade to part of the N3 road
M3 motorway (Hungary)
Michigan State Highway 3
M3 Grease Gun, a U.S. submachinegun
M3 Lee, a U.S. Army tank of World War II. When built in Britain, it was named M3 Grant
M3 Bradley, the cavalry fighting vehicle version of the U.S. M2 Bradley
M3 Half-track, a widely used infantry transport in World War II
BMW M3 automobile
major third in music
money supply, M3 refers to the amount of cash in circulation, the amount in checking or demand deposit accounts plus savings accounts, money market accounts, certificate of deposit accounts and foreign-currency holdings.
M3 was the code name for a special U.S. military mission on Roosevelt Roads Naval Station, in Ceiba, Puerto Rico
M3 is an obsolete BBC technical standard for calibrating stereo peak programme meters
GBA Movie Player M3 adapter
M3, the class name given to the updated Metropolitan class of electric multiple unit ("EMU") railroad cars built by the Budd Company in the early 1980s for the Metropolitan Transportation Authority (New York)'s Long Island Rail Road and the Metro North Railroad.

See also