Question: Here is one sentence: Pay a call.
Here is another sentence: You'll pay for this!
Does the pay mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: Life depends on many chemical and physical processes.
Here is another sentence: The battery had a short life.
Does the life mean the same thing in the two sentences?

Answer: different meanings

Question: Here is one sentence: The "war on drugs" is a campaign against the use of narcotic drugs.
Here is another sentence: The war against crime.
Does the war mean the same thing in the two sentences?

Answer: the same meaning

Question: Here is one sentence: She preferred the black nylon number.
Here is another sentence: This sweater is an all-wool number.
Does the number mean the same thing in the two sentences?

Answer:
the same meaning