"Wobble" refers to a side-to-side or unsteady movement, often seen in objects that are not firmly balanced. This motion can occur in various contexts, such as when a toy spins or when a person walks on uneven ground. The term is commonly used to describe the instability of an object or the way it sways. In physics, wobble can also relate to the concept of precession, where an object like a spinning top changes its axis of rotation over time. This phenomenon is observed in celestial bodies, such as the Earth, which wobbles slightly on its axis due to gravitational forces from the Moon and Sun.