When it comes to the term "air speed," there are a few synonyms that are commonly used. One such synonym is "airspeed," which refers to the speed at which an aircraft is traveling through the air. Another synonym for air speed is "wind speed," which refers to the velocity of the wind that an aircraft is flying through. Lastly, the term "velocity" can also be used to refer to air speed, as it indicates the rate at which an object is moving in a particular direction. No matter which synonym is used, air speed is an important factor in aviation, as it has a significant impact on an aircraft's performance and safety.