onboard

As an adjective onboard

is carried or used on or in a vehicle or vessel.

As an adverb onboard

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

As a verb deboard is

to exit a form of transportation such as a boat, ship, airplane, trolley, streetcar or spaceship.

As adjectives the difference between online and onboard

is that online is describes a system which is connected (generally electrically) to a larger network while onboard is carried or used on or in a vehicle or vessel.

As adverbs the difference between online and onboard

is that online is describes actions performed over the Internet while onboard is on or in a vehicle or vessel; aboard; on board.

As adjectives the difference between onboard and overboard

is that onboard is carried or used on or in a vehicle or vessel while overboard is outside of a boat, in the water.

As adverbs the difference between onboard and overboard

is that onboard is on or in a vehicle or vessel; aboard; on board while overboard is over the edge; especially, off or outside of a boat.

As an adjective onboard

is carried or used on or in a vehicle or vessel.

As an adverb onboard

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

As a noun principles is

plural of lang=en.

As adjectives the difference between onboard and inboard

is that onboard is carried or used on or in a vehicle or vessel while inboard is within a ship.

As an adverb onboard

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

As a noun inboard is

an engine located within the hull of a ship.

As a verb inboard is

to discount a product in order to increase sales.

Vehiclemounted is likely misspelled.

Vehiclemounted has no English definition.

As an adjective onboard is

carried or used on or in a vehicle or vessel.

As an adverb onboard is

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

As adjectives the difference between onboard and nonboard

is that onboard is carried or used on or in a vehicle or vessel while nonboard is not of or pertaining to a board (in any sense).

As an adverb onboard

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

As a verb embark

is to get on a boat or ship or (outside the USA) an aeroplane.

As an adjective onboard is

carried or used on or in a vehicle or vessel.

As an adverb onboard is

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

As an adjective onboard

is carried or used on or in a vehicle or vessel.

As an adverb onboard

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

As a noun abord is

(archaic) manner or way of approaching or accosting; address.

As a verb abord is

(obsolete) to approach.