bonvoyage
nounUK /ˌbɒn vɔɪˈɑːʒ/
US /ˌbɑːn vɔɪˈɑːʒ/
A bonvoyage is a kind wish for someone who is going on a trip.
We waved and shouted a bonvoyage as the bus left for the beach.
OTHER MEANINGS
2. A short message or card wishing someone a good trip.
She wrote a bonvoyage on the card for her friend.
3. A party or small celebration held before someone leaves.
They had a bonvoyage at the office before he moved away.
4. A phrase said to travelers to wish them luck and safety.
The captain said bonvoyage to every passenger on the ship.