Problem: Sentence1: We could always call on a friend.
Sentence2: Call the outcome of an election.
Q: Does the term call mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: Disperse particles.
Sentence2: The Jews are dispersed among all nations.
Q: Does the term disperse mean the same thing in both these sentences?

Answer: different meanings

Problem: Sentence1: The connection between church and state is inescapable.
Sentence2: My headache has no connection with me going out last night.
Q: Does the term connection mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: A ten day's leave to visit his mother.
Sentence2: She was granted leave to speak.
Q: Does the term leave mean the same thing in both these sentences?

Answer:
different meanings