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
This leaves any onboard electronics — like cameras or sensors — free to run on much smaller, lighter power packs. Mrigakshi Dixit, Interesting Engineering, 20 Mar. 2026 The onboard disagreement escalated as other passengers also sought to use the underseat space reserved for the guide dog, raising questions about enforcing service animal rules on commercial flights. Jasmine Baehr, FOXNews.com, 20 Mar. 2026 That positioning underpins much of the vessel’s design and operational thinking, from its flexible accommodations to the onboard programming. Michael Verdon, Robb Report, 20 Mar. 2026 My favorite poster child for this is NASA’s in-development Power and Propulsion Element, which has a 60-kilowatt power system that its onboard propulsion system could use to push an 18,000-kilogram spacecraft to the moon using less than 3,000 kg of propellant. Lee Billings, Scientific American, 18 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 24 Mar. 2026.

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