What is Introverted Intuition?

https://www.truity.com/blog/what-introverted-intuition

It doesn’t matter if you’ve just taken the TypeFinder Personality Test or you’ve known about the 16-type system for some time—there’s always something new to learn. One of the least understood details of the 16-type system is type dynamics. Each personality type is made up of four type dynamics, and one of these is the primary cognitive function that determines how you view the world and interact with it. For example, for INFJs and INTJs, their primary function is something called Introverted Intuition. So, what is Introverted Intuition, and how does it stand out from the other dynamics?

Is being intuitive, the same thing as introversion?  How does intuition intersect with other personality types like empathic or simply being a highly sensitive person?  A few good resources with some good explanations we really appreciated.  Enjoy!