Problem: Sentence1: The Pauli Exclusion Principle prevents two fermions from occupying the same state.
Sentence2: The principles of democracy.
Q: Does the term principle mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: He had a pain in his side.
Sentence2: Which side of the tray shall I put it on?
Q: Does the term side mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Play the stock market.
Sentence2: Who's playing now?
Q: Does the term play mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Swing back.
Sentence2: Swing forward.
Q: Does the term swing mean the same thing in both these sentences?

Answer:
the same meaning