Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

D–day

noun

Simple Definition of D–day

  • : a day on which something important is planned or expected to happen

Source: Merriam-Webster's Learner's Dictionary

Full Definition of D–day

  1. :  a day set for launching an operation; specifically :  June 6, 1944, on which Allied forces began the invasion of France in World War II

Origin and Etymology of d–day

D, abbreviation for day


First Known Use: 1918


Seen and Heard

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

WORD OF THE DAY

of or relating to the heavens

Get Word of the Day daily email!