aboard

1 of 2

adverb or adjective

ə-ˈbȯrd 

1

: alongside

2

a

: on, onto, or within a vehicle (such as a car or ship)

b

: in or into a group, association, or organization

her second promotion since coming aboard

3

baseball : on base

aboard

2 of 2

preposition

: on, onto, within

go aboard ship

aboard a plane

Examples of aboard in a Sentence

Recent Examples on the Web

Adverb or adjective

The first golden retriever reached the inflatable and clambered aboard with a splash, followed shortly by its equally determined sibling. —Maria Morava, MSNBC Newsweek, 28 July 2025

Once aboard, the four Crew-10 spacefarers officially greeted the Expedition 72 crew members, including the astronauts who flew aboard the Starliner. —Eric Lagatta, USA Today, 28 July 2025

Preposition

In a stunning display, astronauts aboard the International Space Station (ISS) recently captured a lightning storm illuminating the skies above Singapore. —Kenna Hughes-Castleberry, Space.com, 29 July 2025

In the sixth, the Royals had two baserunners aboard with no outs. —Kansas City Star, 29 July 2025

Word History

Etymology

Adverb or adjective

Middle English abord, probably in part borrowed from Middle French a bord, a bort "on board," in part from Middle English a- a- entry 1 + bord "board, side of a ship" — more at board entry 1

Preposition

Middle English abord, derivative of abord aboard entry 1

First Known Use

Adverb Or Adjective

14th century, in the meaning defined at sense 1

Preposition

15th century, in the meaning defined above

Rhymes for aboard

• abhorred
• accord
• adored
• afford
• award
• baseboard
• billboard
• blackboard
• boxboard
• breadboard
• broadsword
• buckboard

Kids Definition

aboard

1 of 2 adverb

ə-ˈbōrd 

-ˈbȯrd

: on, onto, or within a vehicle (as a car, ship, or airplane)

aboard

2 of 2 preposition

: on or into especially as a passenger

go aboard ship