The term vibration refers to the back-and-forth movement or oscillation that occurs when an object is set into motion. This can be caused by external forces, such as impacts or mechanical stresses, or it can occur naturally due to internal factors like thermal expansion or acoustic waves. Vibrations can also refer to the sensation of rhythmic shaking experienced in a particular frequency range, which can be perceived through touch (tactile vibration) or heard as sound (acoustic vibration). In general usage, the term "vibration" is often used interchangeably with terms like oscillation, quivering, or jiggling to describe any type of repetitive motion.