Standard Lemma guide

D-Day

name · noun · 4 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

name

Meaning 1

6 June 1944, the date when the Allies invaded western Europe in World War II.

Definition source: English Wiktionary via Wiktextract

Qualifier: World War II

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The date of any major event planned for the future.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Topics: government, military, politics, war

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: X-Day

Antonyms: none provided

3

noun

Meaning 3

Alternative letter-case form of D-Day.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

date of the Allied landing in France, World War II

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: 6 June 1944

Antonyms: none provided

Broader terms: date, day of the month

History

Etymology

The D stands for day; compare H-hour.

Across languages

Translations

26 source translations are retained for this English entry.

  • Chinese Mandarin: D日 (dì-rì) — 6 June 1944
  • Czech: den D — 6 June 1944
  • Danish: D-dag — 6 June 1944
  • Finnish: D-Day — 6 June 1944
  • French: Jour J — 6 June 1944
  • Galician: Día D — 6 June 1944
  • German: D-Day — 6 June 1944
  • Indonesian: hari-H — 6 June 1944
  • Korean: D데이 (didei) — 6 June 1944
  • Norwegian Bokmål: D-dagen — 6 June 1944
  • Portuguese: Dia D — 6 June 1944
  • Romanian: Ziua-Z — 6 June 1944
  • Spanish: Día D — 6 June 1944
  • Swedish: dagen D — 6 June 1944
  • Chinese Mandarin: D日 (dì-rì) — date of any major event planned for the future
  • Czech: den D — date of any major event planned for the future
  • Finnish: h-hetki — date of any major event planned for the future
  • French: Jour J — date of any major event planned for the future
  • Galician: Día D — date of any major event planned for the future
  • German: Tag X — date of any major event planned for the future
  • Indonesian: hari-H — date of any major event planned for the future
  • Korean: D데이 (didei) — date of any major event planned for the future
  • Norwegian Bokmål: D-dag — date of any major event planned for the future
  • Portuguese: Dia D — date of any major event planned for the future
  • Spanish: Día D — date of any major event planned for the future
  • Vietnamese: ngày N — date of any major event planned for the future
Real reading context

D-Day in complete knowledge articles