onboard

/ɒnˈbɔːd/

Proposed by a contributor, not yet supported by evidence.

Also seen as: onboards · onboarding · onboarded

Sense 1

Meaning · English

Carried or used on or in a vehicle or vessel.

Adjective

Examples

“We are aware that there has been an unauthorized release of video footage from flight deck cameras onboard USS Carl Vinson (CVN 70) of the F-35C Lightning II crash that occurred Jan. 24, in the South China Sea. There is an ongoing investigation into both the crash and the unauthorized release of th

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 2

Meaning · English

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

Adjective

Examples

When it comes to security, everybody seems to be as onboard as I am.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 3

Meaning · English

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

Adverb

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Sense 4

Meaning · English

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

Verb

Examples

It's easiest to onboard and offboard employees if you have a checklist to follow.

Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01)

Sources & notes

Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-08-01 via kaikki.org).

Common questions

What does “onboard” mean?

Carried or used on or in a vehicle or vessel.

Is “onboard” formal or informal?

No register label has been reviewed yet — treat it as neutral and check the usage notes above.