M1
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See also: M-1
English
Noun
M1 (countable and uncountable, plural M1s)
- (US, money supply) The amount of cash in circulation plus the amount in bank accounts.
- (mathematics) The number two, as the first Mersenne prime.
- (computing) A system on a chip designed by Apple which was introduced in 2020.
- (road transport) A motorway number; notably the M1 Motorway in England.
- (firearms) A semi-automatic rifle that was the service rifle of the U.S. Army during World War II and the Korean War.