Sanction vs Invest - What's the difference?

Sanction is a related term of invest.

In lang=en terms the difference between sanction and invest

is that sanction is to penalize (a state etc) with sanctions while invest is to make investments.

As nouns the difference between sanction and invest

is that sanction is an approval, by an authority, generally one that makes something valid while invest is (meteorology) an unnamed tropical weather pattern "to investigate" for development into a significant (named) system