Your question is Verify Assumptions in Ambiguous Requirements. 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 are starting work on a business initiative where the requirements are incomplete, different stakeholders use the same terms differently, and some decisions are being made before the underlying process is fully understood.
How do you verify your assumptions when working through ambiguous business requirements?