Question: Here is one sentence: Can you live on $2000 a month in New York City?
Here is another sentence: The holocaust survivors have lived a nightmare.
Does the live mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: It was all done in play.
Here is another sentence: Rain stopped play in the 4th inning.
Does the play mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: It was stuff I had heard before.
Here is another sentence: What is all that stuff on your bedroom floor?
Does the stuff mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Every number has a unique position in the sequence.
Here is another sentence: The equation e^i\pi+1=0 includes the most important numbers: 1, 0, \pi, i, and e.
Does the number mean the same thing in the two sentences?

Answer:
the same meaning