Definition of bon voyage in US English:

bon voyage

exclamation

  • Used to express good wishes to someone about to go on a journey.

    ‘good luck and bon voyage!’
    ‘they had come to wish her bon voyage’

Origin

Late 17th century: French, literally ‘good journey’.

Pronunciation

bon voyage

/ˌbän ˌvoiˈäZH//ˌbɑn ˌvɔɪˈɑʒ/