Definition of crepuscule in US English:

crepuscule

(also crepuscle)

noun

rare
  • Twilight.

    • ‘Certainly, it would make her life far more attractive in the crepuscule of life, but that is not to be.’

Origin

Late Middle English: from Latin crepusculum ‘twilight’.

Pronunciation

crepuscule

/krəˈpəsˌkyo͞ol//krəˈpəsˌkjul/