M–day

play
noun \ˈem-ˌdā\

Definition of M–day

  1. :  a day on which a military mobilization is to begin

Origin and Etymology of m–day

mobilization day


First Known Use: 1924

Learn More about m–day


Seen and Heard

What made you want to look up M–day? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

clearly seen through or understood

Get Word of the Day daily email!