D-day meaning

dē'dā'
D-day is defined as a day when a military attack or important event is planned to take place.

An example of D-day was June 6, 1944 when France was invaded by the Allied forces in World War II.

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The unnamed day on which an operation or offensive is to be launched.
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The day on which the Allied forces invaded France during World War II (June 6, 1944).
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The day on which a military attack or other important event is to take place; specif., June 6, 1944, the day of the invasion of W Europe by Allied forces in WWII.
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(historical) June 6, 1944, the date during World War II when the Allies invaded western Europe.
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(figuratively) The date of any major event planned for the future.
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Origin of d-day

D (abbr. of day) day

Sentence Examples

  • You're put in a plane over Normandy on D-Day as Sgt.

  • Call of Duty 3 sets you up with soldiers in the Falaise Gape after D-Day.

  • D-Day: On June 6 1944, the largest armada in history launched an assault on the Normandy beaches.

  • In June 1944, just in time for D-day, the APDS (armor piercing discarding sabot) shot was introduced.

  • Many of the exhibits have been donated by D-day veterans - both Allied and German - adding a very personal dimension to the displays.

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Also Mentioned In

Words near d-day in the Dictionary