Problem: Sentence1: Let's say you had a lot of money -- what would you do?
Sentence2: Let us say that he did not tell the truth.
Q: Does the term say mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: The story is false, so far as I can discover.
Sentence2: I discovered what he should do.
Q: Does the term discover mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: He had no documents confirming his title to his father's estate.
Sentence2: I can never remember movie titles.
Q: Does the term title mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: It's rude to point at other people.
Sentence2: The dancers toes pointed outward.
Q: Does the term point mean the same thing in both these sentences?

Answer:
different meanings