Instantaneous Velocity is a term used in physics to describe the velocity of an object at a specific moment in time. It is often associated with derivatives of position functions. There are various synonyms for instantaneous velocity, which include immediate speed, instant motion, abrupt movement, momentary rapidity, and sudden swiftness. These terms are used interchangeably to describe the velocity of an object at a precise point in time, and they convey the concept of a change in position per unit of time. In physics, instantaneous velocity is a vital concept as it helps in understanding the behavior of objects in motion. Therefore, these synonyms accurately capture the essence of instantaneous velocity and help to explain its importance.