The word "hallucination" isn't going away — it's a widely used industry term — but we need to explain it better for beginners:
"Hallucination" is just a fancy word for "confidently makes mistakes":
"Remember: AI hallucinates, and you need to confirm all facts" should be something like "Remember: AI confidently makes mistakes, and you need to confirm all facts" or "AI tells you things that are wrong in a way that sounds completely believable. Confirm all facts!"