Q: Does the word "stretch" mean the same thing in "I always stretch my muscles before exercising." and "His mustache stretched all the way to his sideburns."?

A: different meanings

Q: Does the word "orbit" mean the same thing in "Electrons orbit the nucleus." and "The moon orbits around the Earth."?

A: the same meaning

Q: Does the word "serve" mean the same thing in "We serve meals for the homeless." and "The entertainers served up a lively show."?

A: the same meaning

Q: Does the word "boy" mean the same thing in "She made the boy brush his teeth every night." and "The baby was a boy."?

A:
the same meaning