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Adverb: aboard  u'bord
  1. On a ship, train, plane or other vehicle
    - on board
     
  2. On first or second or third base
    "Their second homer with Bob Allison aboard"
    - on base
     
  3. Side by side
    "anchored close aboard another ship"
    - alongside
     
  4. Part of a group
    "Bill's been aboard for three years now"