Definition of en route in English:

en route

adverb

  • During the course of a journey; on the way.

    ‘he stopped in Turkey en route to Geneva’
    • ‘Their job is to keep track of aircraft while they are en route or during the high-altitude cruise phase of their flights.’
    • ‘The usual conversation followed and we explained we were en route to the Auckland Islands.’
    on the way, in transit, on the journey, during the journey, during transport, along the road, on the road, on the move, in motion
    View synonyms

Origin

Late 18th century: French (see route).

Pronunciation

en route

/ɒn ˈruːt/