Phrase guide

blue hour

noun · 1 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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  • Received-Pronunciation: /ˈbluː aʊə/
  • Canada, US: /ˈblu(ː)aʊɚ/
  • rhymes with -aʊə(ɹ)

1

noun

Meaning 1

The period of twilight when the Sun is approximately 4-8° below the horizon and the sky is within a range of blue colors.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Calque of French heure bleue.

Across languages

Translations

9 source translations are retained for this English entry.

  • Basque: ordu urdin — period of twilight
  • Catalan: hora blava — period of twilight
  • French: heure bleue — period of twilight
  • German: blaue Stunde — period of twilight
  • Italian: ora blu — period of twilight
  • Occitan: òra blava — period of twilight
  • Portuguese: hora azul — period of twilight
  • Russian: режи́мное вре́мя (režímnoje vrémja) — period of twilight
  • Spanish: hora azul — period of twilight