Definition of AVAILABILITY. 1. : the quality or state of being available. 2. : an available person or thing.
Definition of EXECUTIVE OFFICER. : the officer second in command of a military or naval organization or vessel. ADVERTISEMENT. the officer second in command of a military or naval organization or vessel. ADVERTISEMENT.
Definition of executive for Students. 1  1 : fitted for or relating to the managing or directing of things Claudia showed the executive ability of a corporation president. 2  2 : relating to the carrying out of the law and the conduct of public affairs the executive branch of government.