Aboard

Etymology
From, from a: + board: (Modern French: bord). 

Adverb

 * 1) On board; into or within a ship or boat; hence, into or within a railway car.
 * We all climbed aboard.
 * 1)  Alongside
 * The ships came close aboard to pass messages.
 * 1)  on base
 * He doubled with two men aboard, scoring them both.

Thesaurus
afloat; all aboard; aloft; among us; athwart the hawse; athwarthawse; aye; before the mast; here; hereabout; hereabouts; hereat; hereinto; hereto; hereunto; hither; hitherward; hitherwards; in sail; in this place; in this vicinity; just here; on board; on board ship; on deck; on shipboard; on the spot; somewhere about; to this place; topside; with us

Preposition

 * 1) On board of; as, to go aboard a ship.
 * We all went aboard the ship.
 * 1)  Across; athwart.

Derived terms

 * fall aboard of, to strike a ship's side; to fall foul of.
 * haul the tacks aboard, to set the courses.
 * keep the land aboard, to hug the shore.
 * lay (a ship) aboard, to place one's own ship close alongside of (a ship) for fighting.