Question: Here is one sentence: He was a successful pianist in his day.
Here is another sentence: In the days of sailing ships.
Does the day mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: The war against crime.
Here is another sentence: The "war on terror" is a campaign against terrorist crime.
Does the war mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: Stop a car.
Here is another sentence: Your rights stop where you infringe upon the rights of other.
Does the stop mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: A solid border around a table of figures.
Here is another sentence: The border between Canada and USA is the longest in the world.
Does the border mean the same thing in the two sentences?

Answer:
different meanings