We aren't talking about Spanish vs English, though. You can simplify concepts like Dialectical Materialism without trying to rename or repackage it so that people already hostile to the concept don't reflexively reject it. People are smarter than that, even if theory can get complex people don't need new words for established terms. Ironically, doing as such contributes to Elitism by creating a secondary language for those who haven't read theory from those who have, and places a confusing barrier in front of those who begin to read theory and would have to relearn terms.
Look to how Communist parties have communicated theory to the masses. Communist leaders and parties have always had to balance simplification for education with getting their ideas across, but never by replacing terminology. This separates the party from the people and disrupts the Mass Line. You are correct that people can understand these concepts without reading theory, but theory is still necessary, and creating needless sepparation drives division between the party and the people, rather than unifying them.