aboard

US /əˈbɔːrd/
UK /əˈbɔːrd/
"aboard" picture
1.

on or into a ship, aircraft, train, or other vehicle

:
Welcome aboard flight BA249 to Mauritius.
All passengers are now aboard.
1.

on a ship, aircraft, train, or other vehicle

:
There were 200 passengers aboard the ship.
He was already aboard the train when I arrived.