Q: Does the word "life" mean the same thing in "The oceans are teeming with life." and "Having experienced both, the vampire decided that he preferred (un)death to life."?

A: different meanings

Q: Does the word "travel" mean the same thing in "He enjoyed selling but he hated the travel." and "Space travel."?

A: the same meaning

Q: Does the word "refine" mean the same thing in "Refine oil." and "Refine paper stock."?

A: the same meaning

Q: Does the word "richness" mean the same thing in "The fire-light gave a richness of coloring to that side of the room." and "The richness all around unsettled him for he had expected to find poverty."?

A:
different meanings