Question: Here is one sentence: I want to get there early; let's roll.
Here is another sentence: The water rolled.
Does the roll mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Before they publish any book they try to determine the size of the market for it.
Here is another sentence: We believe that the market for the new widget is the older homeowner.
Does the market mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: He started the company in his garage.
Here is another sentence: He only invests in large well-established companies.
Does the company mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: You have to shift when you go down a steep hill.
Here is another sentence: He shifted in his seat.
Does the shift mean the same thing in the two sentences?

Answer:
different meanings