While "plate tectonics" refers to the overall theory of how the Earth's crust moves, it's also used to describe the process of the plates shifting themselves.
Here are some other terms related to plate movement:
* Continental drift: This refers specifically to the movement of the continents over time.
* Subduction: When one plate slides beneath another.
* Collision: When two plates crash into each other.
* Faulting: When rocks break and shift along a fracture.
* Earthquakes: These are caused by the sudden release of energy along a fault.
* Volcanoes: These are often formed at plate boundaries where magma rises to the surface.