Question: Here is one sentence: Give your home a facelift.
Here is another sentence: More than a facelift, the new model marks a fundamental change of direction.
Does the facelift mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: He held a large block of the company's stock.
Here is another sentence: Since blocks are often defined as a single sector, the terms 'block' and 'sector' are sometimes used interchangeably.
Does the block mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Can I keep my old stuffed animals?
Here is another sentence: She never keeps her promises.
Does the keep mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: I keep my specimens under glass to protect them.
Here is another sentence: Keep on working!
Does the keep mean the same thing in the two sentences?

Answer:
the same meaning