Problem: Sentence1: If you're going to beat your competitors, you need to focus.
Sentence2: We focused on what he wanted.
Q: Does the term focus mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: A wall of prejudice.
Sentence2: A wall of water.
Q: Does the term wall mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: The horse refuses to back.
Sentence2: The wind backed.
Q: Does the term back mean the same thing in both these sentences?

Answer: the same meaning

Problem: Sentence1: It came by the first post.
Sentence2: If you hurry you'll catch the post.
Q: Does the term post mean the same thing in both these sentences?

Answer:
the same meaning