M - definition of M by The Free Dictionary
Define M. M synonyms, M pronunciation, M translation, English dictionary definition of M. also m The symbol for the Roman numeral 1,000. abbr. 1. Printing em 2. Bible Maccabees 3. Mach number 4. male 5. married 6. medium 7. meridian 8. M - definition of M by The Free Dictionary.
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