Your question is Differentiate UI and UX. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
You're discussing product design with a cross-functional team, and people are using UI and UX interchangeably. You want to clarify the distinction in a way that is practical for product and design work.
Can you explain the difference between UI and UX?