Question: Here is one sentence: Education is the door to success.
Here is another sentence: We closed the door to Haitian immigrants.
Does the door mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: We'll get them!
Here is another sentence: She didn't get the joke.
Does the get mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: They did nearly a million dollars of business over the long weekend.
Here is another sentence: Government and business could not agree.
Does the business mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Have an assistant.
Here is another sentence: Have a lover.
Does the have mean the same thing in the two sentences?

Answer:
the same meaning