inboard /ɪnˈbɔːɹd/adjective 2noun 2verb 1forms 3 adjective2 •Situated within the hull of a vessel. •Positioned nearer to the centre line of a vessel.The Airbus A380 only has thrust reversers on its inboard engines. noun2 •An engine located within the hull of a ship. •A boat with such an engine. verb1 •To discount a product in order to increase sales. formsinboarded · inboarding · inboards