Revolve:
* Focuses on movement around a central point. It implies an orbit or a circular path around another object.
* Often used for larger-scale objects or celestial bodies. We say the Earth revolves around the sun, or a satellite revolves around a planet.
* Can be used metaphorically to describe a cyclical process. For example, "The discussion revolved around the same issue."
Spin:
* Focuses on rotation around an axis. It refers to the object rotating on its own internal axis.
* Often used for smaller objects or individual parts. We say a top spins, or a tire spins.
* Can be used metaphorically for rapid change or a sense of urgency. For example, "The news was spinning out of control."
Here's a simple way to remember:
* Revolve: Around something else
* Spin: On its own axis
Example:
* The Earth revolves around the sun, but it also spins on its own axis.
In short: "Revolve" describes movement in a circle around a central point, while "spin" describes movement around an internal axis.