Abaft Abaft means the rear side of the ship. Aboard Aboardmeans on board a ship. Aids to navigation Aids to navigation are those artificial objects which supplement natural landmarks to distinguish safe and unsafe waters. Alee On the leeward side of a ship. Aloft Up or into the air; Up the mast or into the rigging of a ship i.e above the deck of a Ship.
Amidship The space towards the middle of a ship. Anchorage An area suitable for a ship to anchor at. Astern Behind or towards the rear of a ship Aweigh (An anchor) Raised just clear of a seabed.