on board

1 of 2

phrase

1
: aboard
2
: in support of a particular objective
needed to get more senators on board for the bill to pass

onboard

2 of 2

adjective

on·​board ˈȯn-ˈbȯrd How to pronounce onboard (audio)
ˈän-
: carried within or occurring aboard a vehicle (such as a satellite or an automobile)
an onboard computer
onboard recorders

Examples of on board in a Sentence

Adjective The car comes with an onboard computer.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
For autonomous vehicles, this means the onboard radar frequently receives incomplete information. Etiido Uko march 14, New Atlas, 14 Mar. 2026 From luxury and adults-only escapes to ships packed with onboard adventures and kids’ clubs, there’s truly a cruise—and a cruise line—for everyone. Southern Living Editors, Southern Living, 12 Mar. 2026 There’s also an onboard café where all travelers can pick up snacks, coffee, and drinks. Lauren Dana Ellman, Travel + Leisure, 12 Mar. 2026 The yacht can also sleep 11 crew, ensuring all onboard are looked after. Rachel Cormack, Robb Report, 12 Mar. 2026 See All Example Sentences for on board

Word History

First Known Use

Adjective

1958, in the meaning defined above

Time Traveler
The first known use of on board was in 1958

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Cite this Entry

“On board.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20board. Accessed 18 Mar. 2026.

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