Question: Here is one sentence: Walk down the street.
Here is another sentence: He lives on Nassau Street.
Does the street mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: Education is the door to success.
Here is another sentence: I knocked on the vice president's door.
Does the door mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Give a course.
Here is another sentence: The draft gave me a cold.
Does the give mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Fall by the wayside.
Here is another sentence: We must stand or fall.
Does the fall mean the same thing in the two sentences?

Answer:
the same meaning