1 m noun
plural m's or ms or M's or Ms
plural m's or ms or M's or Ms
Learner's definition of M
1
: the 13th letter of the English alphabet英语字母表的第13个字母 [count]
[noncount]
2
[count] : the Roman numeral that means 1,000(罗马数字)一千 2 m abbreviation
Learner's definition of M