As I said yesterday, definitions are important in reasoning — which is important in taking action in this world and in achieving happiness. Not a mere academic matter. A where-the-tire-hits-the-road matter.
A Website associated with a logic text identifies some of the roles of definitions and some of the rules of definitions.
I have studied this before. I take it seriously, so I use it in tutoring. It helps. It’s important stuff; I’ll have to study it again in the near future.