Problem: Sentence1: It was on the order of a mile.
Sentence2: Law and order.
Q: Does the term order mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: An estimate of what it would cost.
Sentence2: Many factors are involved in any estimate of human life.
Q: Does the term estimate mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: The flock of birds took to the air.
Sentence2: I need some fresh air.
Q: Does the term air mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: It is not work but worry that kills.
Sentence2: His worry over the prospect of being fired.
Q: Does the term worry mean the same thing in both these sentences?

Answer:
the same meaning