What Is Polygon in Simple Terms?

Polygon is a system that helps make Ethereum faster and cheaper to use.
Ethereum is very popular, but when too many people use it at once, transactions can become slow and expensive.
Polygon solves this problem by handling transactions off the main Ethereum chain and then sending the final results back to it.
This reduces congestion and lowers fees while still keeping security.
It also helps developers build apps that run more smoothly.
In simple terms, Polygon is:
A scaling solution for Ethereum
A way to make transactions faster and cheaper
A network that improves blockchain usability
If you’re new to Polygon, what part sounds most useful so far?
— CNF Team