Problem: Sentence1: A racially integrated business concern.
Sentence2: Show me where the business was today.
Q: Does the term business mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Run a new program on the Mac.
Sentence2: Don't run that software unless you have permission.
Q: Does the term run mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Pop the clutch.
Sentence2: The muskets popped away on all sides.
Q: Does the term pop mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: This nest egg will ensure a nice retirement for us.
Sentence2: The circumstances ensured that he would arrive in time.
Q: Does the term ensure mean the same thing in both these sentences?

Answer:
the same meaning