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.
The Chief Executive Officer (CEO) is the highest ranking executive manager in a corporation or organization. The CEO has responsibility for the overall success of an entire organization.