Definitions:

1. on a ship, train, plane or other vehicle adverb
   • The captain of the ship ordered everyone to come aboard so they could weigh anchor.
2. on a ship, train, plane or other vehicle adverb
   • They came aboard the yacht at midnight.
3. on a ship, train, plane or other vehicle adverb
   • Bring all the luggage aboard.
4. on a ship, train, plane or other vehicle adverb
   • They were sleeping aboard the ship.
5. on a ship, train, plane or other vehicle adverb
   • We ate aboard the plane.
6. on a ship, train, plane or other vehicle adverb
   • They left their car and got aboard the bus.
7. on a ship, train, plane or other vehicle adverb
   • They climbed aboard the ship and waved at us.
8. on a ship, train, plane or other vehicle adverb
   • I booked a cabin aboard the luxury liner.
9. on a ship, train, plane or other vehicle adverb
   • We embarked aboard the ship.
10. on a ship, train, plane or other vehicle adverb
    • The passengers embarked the plane aboard which they were to make their trip.
11. on a ship, train, plane or other vehicle adverb
    • They had to queue for hours before they could get aboard the train.
12. on a ship, train, plane or other vehicle adverb
    • The captain ordered everyone to come aboard so they could weigh anchor.
13. on a ship, train, plane or other vehicle adverb
    • The captain of the ship ordered everyone to come aboard so they could weigh anchor.
14. on a ship, train, plane or other vehicle adverb
    • The crew and all the passengers were aboard when the ship sailed.
15. on a ship, train, plane or other vehicle adverb
    • I was already aboard when the ship left port.
16. on a ship, train, plane or other vehicle adverb
    • They were still aboard the ship.
17. on first or second or third base adverb
    • The captain of the ship ordered everyone to come aboard so they could weigh anchor.
18. part of a group adverb
    • The captain of the ship ordered everyone to come aboard so they could weigh anchor.
19. side by side adverb
    • The captain of the ship ordered everyone to come aboard so they could weigh anchor.

Synonyms:

• alongside
• on base
• on board