aboard
verb
°On board; into or within a ship or boat; hence, into or within a railway car.
"We all climbed aboard."
°(nautical) Alongside.
"The ships came close aboard to pass messages."
preposition
°On board of; as, to go aboard a ship.
"We all went aboard the ship."
°(obsolete) Across; athwart.
"Nor iron bands aboard The Pontic Sea by their huge navy cast. - Edmund Spenser"