There are 2 definitions of nm in English:

nm1

Line breaks: nm

abbreviation

1Nanometre.
1.1 (also n.m.) Nautical mile.

Definition of nm in:

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Word of the day flippant
Pronunciation: ˈflɪp(ə)nt
adjective
not showing a serious or respectful attitude

There are 2 definitions of nm in English:

NM2

Line breaks: NM

abbreviation

New Mexico (in official postal use).

Definition of nm in: