M.m. Definition
abbreviation
Mutatis mutandis.
American Heritage
Month on month (also written month-on-month) - Percentual change from same period one month earlier.
Wiktionary
Wiktionary
Wiktionary
Wiktionary
letter
numeral
The ordinal number thirteenth, derived from this letter of the English alphabet, called em and written in the Latin script.
Wiktionary