Definitions

D-day

[dee-dey] / ˈdiˌdeɪ /

NOUN

target date

Synonyms

WEAK

A-day H-hour deadline target day term terminal date time allotment time frame zero hour

NOUN

zero hour

Synonyms

WEAK

A-day H-hour appointed hour climax contingency countdown crisis crisis point crossroad crossroads crunch time deadline emergency exigency jumping-off point juncture moment of truth pinch pivotal moment start time strait target target day the time turning point vital moment

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

If you’re skeptical about how exciting a movie about the weather on D-day might be, “Pressure” takes that as a creative challenge, an argumentative stance from which to start.

From Los Angeles Times • May 29, 2026

“That was an absolute disaster and yet we remember D-day as one of the great military triumphs in history,” Haig says.

From Los Angeles Times • May 29, 2026

In the film, Scott’s Stagg arrives at Southwark House from Dunstable four days before D-day is planned.

From Los Angeles Times • May 29, 2026

Eisenhower, in particular, felt the magnitude of D-day.

From Los Angeles Times • May 29, 2026

Few of us slept the night before D-day.

From "Code Talker: A Novel About the Navajo Marines of World War Two" by Joseph Bruchac

D-day

Example Sentences

Related Words