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.

Among their finds is a fire extinguisher dating from 1942, newspapers from the week after D-Day, and a tin of "whole chicken in jelly" - fortunately empty.

From BBC • May 4, 2026

Meanwhile Theo sees aerial action on D-Day and cheats death.

From The Wall Street Journal • Apr. 17, 2026

Shelley was a seaman gunner on the destroyer HMS Milne on D-Day and guarded troops going ashore during the Normandy landings in June 1944.

From BBC • Mar. 31, 2026

It’s been nearly six decades since the first moon landing and more than eight decades since D-Day.

From The Wall Street Journal • Jan. 13, 2026

He was in the war, too--he landed on D-Day and all--but I really think he hated the Army worse than the war.

From "The Catcher in the Rye" by J. D. Salinger

D-day

Example Sentences

Related Words