Meaning of ABOARD in English

ABOARD

adv. & prep.

1. on or into (a ship, aircraft, train, etc.).

2 alongside.

Phrases and idioms:

all aboard! a call that warns of the imminent departure of a ship, train, etc.

Etymology: ME f. A(2) + BOARD & F {agrave} bord

Oxford English vocab.      Оксфордский английский словарь.