What is another word for transonic barrier?
Pronunciation: [tɹansˈɒnɪk bˈaɹɪə] (IPA) 
The transonic barrier is a term used to describe the point at which an object is moving at the speed of sound, which can create turbulence and drag on the object. There are several synonyms that can be used to describe this phenomenon, including sonic threshold, sound barrier, and Mach transition. The term Mach number is also commonly used to describe the ratio of an object's speed to the speed of sound. Other related terms include supersonic (faster than the speed of sound) and hypersonic (five times or more the speed of sound). Understanding these concepts is critical in the design of high-speed aircraft and other vehicles that operate at or near the transonic barrier.
