: carried within or occurring aboard a vehicle (such as a satellite or an automobile)
an onboard computer
onboard recorders

on board

2 of 2

phrase

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

Examples of onboard 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
Its onboard offerings, wide array of itineraries and shore excursions—particularly those that are food and wine-driven—easily combine education, adventure, and good fun. — Condé Nast, Condé Nast Traveler, 23 Sep. 2026 The company says its onboard AI can identify individual dogs, classify barking and track a dog with its pan-and-tilt camera. — Kurt Knutsson, FOXNews.com, 22 Sep. 2026
Phrase
Although the aircraft performed every phase of flight autonomously, from taxiing and takeoff to cruise and landing, FAA regulations required a qualified safety pilot to be on board. — New Atlas, 21 Sep. 2026 Fort Lauderdale Fire said nobody was on board when the flames broke out. — Matthew Ablon, CBS News, 20 Sep. 2026 See All Example Sentences for onboard

Word History

First Known Use

Adjective

1958, in the meaning defined above

Time Traveler
The first known use of onboard was in 1958

Browse Nearby Words

Cite this Entry

“Onboard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/onboard. Accessed 28 Sep. 2026.

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