Problem: Sentence1: Can you wash away the spots on the windows?
Sentence2: He washed the dirt from his coat.
Q: Does the term wash mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: It was an excellent kick but the ball hit the bar.
Sentence2: The orchestra omitted the last twelve bars of the song.
Q: Does the term bar mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: To raise somebody to office.
Sentence2: Chew with your mouth shut -- were you raised in a barn?
Q: Does the term raise mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: The war against crime.
Sentence2: The war on poverty.
Q: Does the term war mean the same thing in both these sentences?

Answer:
the same meaning