Question: Here is one sentence: The body of the car was badly rusted.
Here is another sentence: Penny was in the scullery, pressing the body of her new dress.
Does the body mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: It worked up to right now.
Here is another sentence: Now is the right time.
Does the now mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: He borrowed a large sum.
Here is another sentence: A tidy sum.
Does the sum mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: He searched for treasure on the ocean bed.
Here is another sentence: There's a lot of trash on the bed of the river.
Does the bed mean the same thing in the two sentences?

Answer:
the same meaning