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.
executive, executive director(noun) a person responsible for the administration of a business. executive(noun) persons who administer the law. administrator, executive(adj) someone who manages a government agency or department. executive(adj) having the function of carrying out plans or orders etc.