Q: Does the word "convert" mean the same thing in "Convert slaves to laborers." and "Convert lead into gold."?

A: the same meaning

Q: Does the word "play" mean the same thing in "Play fair." and "Play football."?

A: different meanings

Q: Does the word "check" mean the same thing in "Check into the rumor." and "Check the brakes."?

A: different meanings

Q: Does the word "stay" mean the same thing in "Stay alone." and "Stay put in the corner here!"?

A:
different meanings