Question: Here is one sentence: Pump bullets into the dummy.
Here is another sentence: The athlete pumps weights in the gym.
Does the pump mean the same thing in the two sentences?

Answer: different meanings


Question: Here is one sentence: The flock of birds took to the air.
Here is another sentence: There was a tension in the air which made me suspect an approaching storm.
Does the air mean the same thing in the two sentences?

Answer: the same meaning


Question: Here is one sentence: Life has lost its point.
Here is another sentence: What is the point of discussing it?
Does the point mean the same thing in the two sentences?

Answer: different meanings


Question: Here is one sentence: I shall be writing to you soon.
Here is another sentence: There was a lot of noise in the kitchen.
Does the be mean the same thing in the two sentences?

Answer:
the same meaning