Buzzwords, insider concepts, and industry lingo have no place in your presentation. Each field has its own lexicon that’s familiar to experts but foreign to everyone else. Unless you’re speaking to a group of people who are steeped in the material, you’re better off avoiding highly technical or industry-specific language. Consider whether your presentation passes the “grandmother test”: If your grandmother wouldn’t understand what you’re talking about, rework your message. Use words that will resonate with the people you want to support and influence you. If they can’t follow your ideas, they won’t adopt them.