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Meaning of aboard

a•board

Pronunciation: (u-bôrd', u-bōrd'), [key]
— adv.
  1. on board; on, in, or into a ship, train, airplane, bus, etc.: to step aboard.
  2. alongside; to the side.
  3. on base: a homer with two aboard.
  4. (as a warning to passengers entering or planning to enter a train, bus, boat, etc., just before starting) Everyone get on!
  5. into a group as a new member: The office manager welcomed him aboard.
—prep.
  1. on board of; on, in, or into: to come aboard a ship.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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