onboard
onboard Lexical Profile
onboard Game Scores & Validity
• adjective
Located, carried, or available inside a vehicle, vessel, or aircraft.
"The airline recently upgraded its onboard entertainment system for international flights."
Built directly into a main circuit board, machine, or electronic device.
"The motherboard features an onboard graphics processor that handles basic video tasks."
• verb
To integrate and train a new employee or client within an organization or system.
"The human resources department will onboard ten new software engineers next Monday."
To load or take passengers or cargo onto a ship, aircraft, or other vehicle.
"The crew waited for the storm to pass before attempting to onboard the remaining supplies."
• adverb
On or into a ship, aircraft, train, or other vehicle.
"Passengers are only permitted to bring one small carry-on bag onboard."
• preposition
On or into a ship, aircraft, train, or other vehicle.
"The scientific team spent three weeks conducting marine research onboard the vessel."
Word Nuance & Usage
As a single word, 'onboard' is standard as an attributive adjective before a noun (e.g., 'onboard computers') or as a business verb meaning to integrate new personnel, whereas the two-word phrase 'on board' is generally preferred in formal writing for adverbial and prepositional uses (e.g., 'welcome on board').
Word Origin & Etymology
Formed as a solid compound from the older phrase 'on board,' which originally referred to being upon the wooden deck or planks ('board,' from Old English 'bord') of a sailing vessel.