Definition of "on board" in English

Preposition

1. On or in (a means of transportation).

   • On board his boat were various firearms but not much food.
   • Even when I am on board the plane, I can never feel secure that my luggage is, too.

Adjective

1. Joining in or participating.

   • Is that new teammate properly on board yet?

2. Agreeing or supporting.

   • It's a good idea, but let's see if we can get a few more of the management team on board.
   • Without management on board, the project has little chance of success.

3. Into itself or oneself.

Interjection

1. The stereotypical cry of pirates when boarding a ship for close quarters combat.