Problem: Sentence1: I'm not ready to run a marathon.
Sentence2: Let the dogs run free.
Q: Does the term run mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Political fatigue.
Sentence2: After watching TV with her husband she had a bad case of football fatigue.
Q: Does the term fatigue mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: He threw the ball into the air.
Sentence2: A smell of chemicals in the air.
Q: Does the term air mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: We're adding another wall in this room during the remodeling.
Sentence2: Stomach walls.
Q: Does the term wall mean the same thing in both these sentences?

Answer:
different meanings