Problem: Sentence1: Football tickets are expensive at fifty bucks a throw.
Sentence2: He couldn't afford $50 a throw.
Q: Does the term throw mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: 12 head of big cattle and 14 head of branded calves.
Sentence2: The office was full of secret heads.
Q: Does the term head mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Fabric with a tendency to shrink.
Sentence2: Denim has a tendency to fade.
Q: Does the term tendency mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: The change of government had no impact on the economy.
Sentence2: He inspected several changes before selecting one.
Q: Does the term change mean the same thing in both these sentences?

Answer:
different meanings