Q: Does the word "reaction" mean the same thing in "He was pleased by the audience's reaction to his performance." and "John feared his mother's reaction when she saw the broken lamp."?

A: the same meaning

Q: Does the word "side" mean the same thing in "It brought out his better side." and "He is on the purchasing side of the business."?

A: the same meaning

Q: Does the word "charge" mean the same thing in "Charge a conductor." and "The speaker charged up the crowd with his inflammatory remarks."?

A: different meanings

Q: Does the word "focus" mean the same thing in "The controversy brought clearly into focus an important difference of opinion." and "The focus of activity shifted to molecular biology."?

A:
different meanings