Problem: Sentence1: She kept a firm hold on the railing.
Sentence2: Keep a firm hold on the handlebars.
Q: Does the term hold mean the same thing in both these sentences?

Answer: the same meaning

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: A block of stone.
Sentence2: The pyramids were built with large stone blocks.
Q: Does the term block mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: I mean no harm.
Sentence2: The sky is red this morning -- does that mean we're in for a storm?
Q: Does the term mean mean the same thing in both these sentences?

Answer:
different meanings