(September 2014). A general sales agent (GSA) is a sales representative for an airline in a specific country or region. Typically, the GSA is responsible for selling all products of the airline in its region which includes flight tickets and cargo space. A GSA will typically sell the product of more than one airline.
Definition of standing wave. : a single-frequency mode of vibration of a body or physical system in which the amplitude varies from place to place, is constantly zero at fixed points, and has maxima at other points.
noun. The definition of standing is in an upright position, or not flowing or moving. 1  An example of standing used as an adjective is the standing model.. 2  An example of standing used as an adjective is in the phrase the standing water..