variants or D-day
: a day set for launching an operation
specifically : June 6, 1944, on which Allied forces began the invasion of France in World War II

Examples of D-Day in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Larson of Lafayette, California, fought in six battles during World War II while storming Omaha Beach on D-Day and then in the Battle of the Bulge. Ashley J. Dimella, FOXNews.com, 4 July 2025 The family also played a key role in commemorating the 80th anniversaries of D-Day and V-E Day, further reinforcing its role on both the national and international stage. Gabe Whisnant, MSNBC Newsweek, 30 June 2025 My father-in-law served in the 82nd Airborne in World War II, trained at Fort Bragg and helped fly a glider plane behind enemy lines on D-Day. Chicago Tribune, 20 June 2025 With Bedford suffering the highest per-capita D-Day losses in the nation, the town holds a deep connection to World War II history. Abby Price, Travel + Leisure, 9 June 2025 See All Example Sentences for D-Day

Word History

Etymology

D, abbreviation for day

First Known Use

1918, in the meaning defined above

Time Traveler
The first known use of D-Day was in 1918

Browse Nearby Words

Cite this Entry

“D-Day.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/D-Day. Accessed 20 Jul. 2025.

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!