Q: Does the word "rock" mean the same thing in "While we're in Brighton, let's get a stick of rock!" and "He threw a rock at me."?

A: different meanings

Q: Does the word "remember" mean the same thing in "Do you remember that he once loved you?" and "I remember the concert clearly, but I can't recollect why I was there."?

A: the same meaning

Q: Does the word "hum" mean the same thing in "There is a constant hum of military preparation." and "The hum of distant traffic."?

A: different meanings

Q: Does the word "concern" mean the same thing in "The safety of the ship is the captain's concern." and "She felt strong concern for those less fortunate."?

A:
different meanings