m-1 m • m-1 rifle · · · Info · Definitions · Characters · · m-1 · · Text Common · · Latin · · Scripts 3 · · Length 1 · · Syllables Definitions · · · (noun) a semiautomatic rifle. Synonyms: Garand rifle, Garand, M-1, M-1 rifle. · · Noun Definition 1 (noun) a measure of the money supply; includes currency in circulation plus demand deposits or checking account balances. Synonyms: M1. · · Noun Definition 1 Characters · · - hyphen-minus U+002D 1 digit one U+0031 m latin small letter m U+006D