Definition of "aboard"
- preposition
Across; athwart; alongside.
Onto a horse.
On board of; onto or into a ship, boat, train, plane.
- adverb
Alongside.
Into a team, group, or company.
On base.
On or onto a horse, a camel, etc.
On board; into or within a ship or boat; hence, into or within a railway car.
- Sources