What is another word for ground speed?
Pronunciation: [ɡɹˈa͡ʊnd spˈiːd] (IPA) 
Ground speed refers to the speed at which an object or vehicle is moving relative to the ground. There are several synonyms for this term, including true airspeed, ground velocity, ground track speed, and horizontal speed. True airspeed refers to the actual speed of an aircraft in the air, while ground velocity is the rate at which an object is moving in a specific direction. Ground track speed is the speed at which an aircraft is moving along a specific flight path, while horizontal speed is the speed at which an object is moving parallel to the ground's surface. While these terms have slightly different meanings, they are all used to describe the speed of an object moving relative to the ground.
