Definition of M2M in English:

M2M

Syllabification: M2M

Entry from US English dictionary

abbreviation

1Machine-to-machine.
1.1Machine-to-mobile.
1.2Mobile-to-machine.

Definition of M2M in:

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Word of the day anastrophe
Pronunciation: əˈnastrəfi
noun
the inversion of the usual order of words...