Problem: Sentence1: The maths problem is a real snorter, isn't it?
Sentence2: The problem was a real snorter.
Q: Does the term snorter mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Pulp fruit.
Sentence2: Pulp wood.
Q: Does the term pulp mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: Her favorite subject is physics.
Sentence2: A moving picture of a train is more dramatic than a still picture of the same subject.
Q: Does the term subject mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Play the casinos in Trouville.
Sentence2: Play the stock market.
Q: Does the term play mean the same thing in both these sentences?

Answer:
different meanings