As an adjective:
* The mighty oak tree stood tall and proud, its branches reaching towards the sky. (Describing strength and power)
* She delivered a mighty roar that shook the ground. (Describing intensity and force)
* He was a mighty warrior, feared by all his enemies. (Describing strength and skill)
* The mighty Mississippi River flows for thousands of miles. (Describing size and importance)
As an adverb:
* The lion roared mighty loud, sending shivers down the spines of the nearby zebras. (Describing the intensity of an action)
* He struck the ball mighty hard, sending it soaring over the fence. (Describing the force of an action)
As a noun:
* The mighty of the land gathered for the royal feast. (Describing those who hold power and influence)
* The mighty have fallen, and the humble have risen. (Describing a change in power dynamics)
These are just a few examples, and the meaning of "mighty" can vary depending on the context.