Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Carried or used aboard a vehicle or vessel.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Carried or used on or in a vehicle or vessel
  • adverb On or in a vehicle or vessel; aboard; on board.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From on board, equivalent to on- +‎ board.

Examples

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