from The American Heritage® Dictionary of the English Language, 4th Edition

  • adv. On board a ship, train, aircraft, or other passenger vehicle.
  • adv. At the side; alongside.
  • adv. In or into a group, organization, or business: brought aboard two new designers.
  • adv. Baseball On base.
  • prep. On board of; on; in.

from the GNU version of the Collaborative International Dictionary of English

  • adv. On board; into or within a ship or boat; hence, into or within a railway car.
  • adv. Alongside.
  • prep. On board of.
  • prep. Across; athwart.

from The Century Dictionary and Cyclopedia

  • On the deck or in the hold of a ship or vessel; into or upon a vessel.
  • Alongside; by the side; on one side.
  • On board; into.
  • Upon; across; athwart.
  • n. Approach. Also spelled abord.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adv. part of a group
  • adv. on a ship, train, plane or other vehicle
  • adv. on first or second or third base
  • adv. side by side


Middle English abord : a-, on; see a-2 + bord, ship (from Old English bord).
(American Heritage® Dictionary of the English Language, Fourth Edition)



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