Conversation

When people engage in discussions, there's a minimal level of sophistication about basic terminology and concepts they must be competent with.

That's not intellectual elitism.

What's is incredibly unreasonable and elitist (in the sense that it's a borderline offensive expression of entitlement) is to pretend that the burden of your education, and teaching you the abc of even single simple terms must be a burden for the other person to meet your level of basic incomprehension.