Flight lane is a term commonly used in aviation to refer to the designated airspace or route used by aircraft for takeoff, landing and flight. However, there are several synonyms that can be used interchangeably to mean the same thing. These include airway, approach path, flight path, flight corridor, and air corridor. These terms are used by air traffic control personnel to direct planes along specific routes or paths in the sky. The use of these synonyms ensures a common understanding between pilots and air traffic controllers and helps to maintain safety and efficiency in the airspace.