English Reference
preposition · adverb

aboard

prep. · adv.
US /əˈbɔɹd/ UK /ɐbˈɔːd/ aboard

  1. 01 B1 Intermediate

    prep.on or into a ship, train, plane, or bus.

    prep.on or onto a large passenger vehicle, such as a ship, aircraft, or train.

    Simple

    The captain welcomed the passengers aboard the ship as they arrived.

    In context

    Once all the cargo was secured, the crew stepped aboard the vessel and prepared to depart for the open sea.

    Usage

    Always followed by a noun phrase representing the vehicle.

    off
  2. 02 B1 Intermediate

    adv.on or into a vehicle, used without naming the vehicle again.

    adv.positioned within or onto a vehicle; functions as an adverb when the vehicle is understood from context.

    Simple

    The train was about to leave, so we quickly climbed aboard.

    In context

    The flight attendant signaled that the doors were closing and no more passengers would be allowed aboard.

    Usage

    Used alone after a verb of motion or position.

  3. 03 B2 Upper Intermediate Informal

    adv.joining a new group, team, or company.

    adv.metaphorical use indicating the start of a person's membership in an organisation or project.

    Simple

    We are happy to have a new designer aboard for this project.

    In context

    The CEO spent the morning welcoming the new recruits aboard, emphasizing the company's commitment to innovation.

    Usage

    Commonly used in the phrase 'welcome aboard'.

    Teacher's tip

    This is very common in business English when a new employee starts their first day.

  4. 04 C1 Advanced American English Sport

    adv.in baseball, when a player is standing on a base.

    adv.referring to a runner who is safely occupying a base.

    Simple

    With two runners aboard, the next batter hit a home run.

    In context

    The pitcher struggled with his control, eventually leaving three runners aboard for the relief pitcher to deal with.

    Usage

    Usually occurs in the phrase 'runners aboard'.

Usage aboard the ship · aboard the aircraft


From Middle English abord, from a- (“on”) + bord (“board, side of a ship”); equivalent to a- + board.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English abord
Level B1 · Intermediate
Frequency Common
Updated