aboard

The word “aboard” means on or into a ship, plane, train, or other vehicle. In plain terms, on or onto a vehicle you travel in — a ship, plane, or train.

“Aboard” is pronounced uh-BAWD (/əˈbɔɹd/ in IPA).

Here is “aboard” used in a sentence: “All passengers should be aboard ten minutes before departure.”

Depending on how it is used, “aboard” can be an adverb and a preposition.

The word “aboard” comes from Middle English. From Middle English abord, from a- ("on") + bord ("side of a ship, board").

“Aboard” is a fairly common word in modern English, usually learned at around the B1 level.

“Aboard” has 2 distinct senses listed in this dictionary. The most common is: on or into a ship, plane, train, or other vehicle.

"Aboard" and "on board" both mean on or onto a ship, plane, train, or other vehicle, and are largely interchangeable. "Aboard" is a single word that can act as an adverb or a preposition, as in "climb aboard" or "aboard the train." "On board" is the two-word phrase, while "onboard" written as one word is usually an adjective, as in "onboard entertainment."

"Aboard" can be both. As a preposition it takes an object, as in "aboard the ship." As an adverb it stands alone, as in "welcome aboard," where no vehicle is named directly.