Question: Here is one sentence: She made a copy of the designer dress.
Here is another sentence: The clone was a copy of its ancestor.
Does the copy mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: The pit floor showed where a ring of post holes had been.
Here is another sentence: The floor of the pelvis.
Does the floor mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: The battle began with a cavalry charge.
Here is another sentence: The newspaper published charges that Jones was guilty of drunken driving.
Does the charge mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Please speak up, the line is very faint.
Here is another sentence: I tried to make a call, but the line was dead.
Does the line mean the same thing in the two sentences?

Answer:
the same meaning