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View synonyms for D-day

D-day

or D-Day

[ dee-dey ]

noun

  1. Military. the day, usually unspecified, set for the beginning of a planned attack.
  2. June 6, 1944, the day of the invasion of western Europe by Allied forces in World War II.
  3. Informal. any day of special significance, as one marking an important event or goal.


D-day

noun

  1. the day, June 6, 1944, on which the Allied invasion of Europe began
  2. the day on which any large-scale operation is planned to start
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


D-Day

  1. The code name for the first day of a military attack, especially the American and British invasion of German-occupied France during World War II on June 6, 1944 ( see invasion of Normandy ). This marked the beginning of the victory of the Allies in Europe . Germany surrendered less than a year later.


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Word History and Origins

Origin of D-day1

First recorded in 1918; D (for day ) + day; the same pattern as H-hour
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Word History and Origins

Origin of D-day1

C20: from D ( ay ) -day; compare H-hour
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Example Sentences

Amy renamed the days of the week A-day, B-day, C-day, D-day, E-day, F-day and G-day.

It must have been one of the big highs of the war, to be in London and hit the pubs during the last two months before D-Day.

For the citizens of that city, this event has a deeper, more sentimental meaning than even D-Day.

Williams interviewed and profiled four D-Day veterans, showing his sensitive side without ever seeming maudlin.

D-Day was the first successful opposed landing on French territory—the country was held by the Nazis—in over 800 years.

D-Day was 70 years ago, and to midshipmen of today, it is all but ancient history.

The end of a perfect d-day she tried to grin, her teeth chattering with cold.

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