As adults, we tend to overcomplicate things.
It’s much more important to master the basics of math, science, design, business, etc… Speaking with big words is a way of saying nothing when you don’t deeply understand the basics.
Watch Richard Feynman masterfully break down everyday events with the context of physics in this video:
He would not be able to easily communicate these concepts if he didn’t master the basics first.
To better communicate with others and understand the world, focus on the basics. Don’t worry about the rest, for now.