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.
DragonImages/iStock/Getty Images. An executive administrator, often called an executive assistant, is an administrative professional who provides clerical, operational and personal support to an executive level manager.These roles are often found within large organizations.andidates for the role of executive administrator must possess a high school diploma or its equivalent. Additionally, many employers give preference to those who possess a four-year degree.