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.
Even where there is no title of officer, it is assumed that all those personnel who are occupying chairs in top management are officers even if they are being called President, Vice President, and so on. Executive. Executive is a title that is used for senior level personnel in a company or an organization. In the case of a government, executive refers to the arm that is responsible for running the administrative affairs.