Problem: Sentence1: The trapped miners found a pocket of air.
Sentence2: They dipped into the taxpayers' pockets.
Q: Does the term pocket mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: This mushrooms can poison.
Sentence2: Poison someone's mind.
Q: Does the term poison mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: His next stop is Atlanta.
Sentence2: They agreed to see each other at the bus stop.
Q: Does the term stop mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: A right angle is a ninety degree angle.
Sentence2: Most humans have a field of vision of almost 180 degrees.
Q: Does the term degree mean the same thing in both these sentences?

Answer:
the same meaning