American English

Definition of M noun from the Oxford Advanced American Dictionary

 

M

 noun
noun
NAmE//ɛm//
 
m [countable, uncountable] (pl. Ms, M's, m's
NAmE//ɛmz//
 
)
 
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the 13th letter of the English alphabet “Milk” begins with (an) M/“M.”
See the Oxford Advanced Learner's Dictionary entry: M