Q: Does the word "cover" mean the same thing in "Cover the grave with flowers." and "The insurance won't cover this."?

A: different meanings

Q: Does the word "yes" mean the same thing in "I was hoping for a yes." and "Was that a yes?"?

A: the same meaning

Q: Does the word "focus" mean the same thing in "Please focus on your studies and not on your hobbies." and "We focused on what he wanted."?

A: the same meaning

Q: Does the word "rhythm" mean the same thing in "The piece has a fast rhythm." and "We walked with a quick, even rhythm."?

A:
the same meaning