Problem: Sentence1: It ended on a sour note.
Sentence2: There was a note of gaiety in her manner.
Q: Does the term note mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: The man must answer to his employer for the money entrusted to his care.
Sentence2: She must answer for her actions.
Q: Does the term answer mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: They fought to regain the lost ground.
Sentence2: The worm crawls through the ground.
Q: Does the term ground mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Cut recording tape.
Sentence2: Cut from one scene to another.
Q: Does the term cut mean the same thing in both these sentences?

Answer:
different meanings