Aboard - Definition

adv 1: on a ship, train, plane or other vehicle [syn: aboard,
on board]
2: on first or second or third base; "Their second homer with
Bob Allison aboard" [syn: aboard, on base]
3: side by side; "anchored close aboard another ship" [syn:
aboard, alongside]
4: part of a group; "Bill's been aboard for three years now"