Speed sound synonyms include sonic velocity, acoustic speed, and sound velocity. Sonic velocity refers to the speed at which sound waves travel through a medium, such as air or water. Acoustic speed is another term used to describe the velocity of sound waves. Sound velocity is a more general term that can also refer to the speed of sound in solids, liquids, or gases. Other synonyms for speed sound include audio velocity, sound speed, and celerity of sound. These terms are often used interchangeably in physics and engineering to describe the rate at which sound can propagate through a given medium.