What is the meaning of Onboard?

Carried or used on or in a vehicle or vessel.

Being a part of, being included in, participating in.

On or in a vehicle or vessel; aboard; on board.

To become a part of a group; to incorporate (someone) into a group.

To begin to use a product or service; to take (someone) on as a new customer of a product or service.

Source: wiktionary.org