Answer:
Irony
Explanation:
The name "Fortunato" in this story is an example of irony. The word means "fortunate" in Italian, and this is the name of a nobleman in "The Cask of Amontillado." However, this nobleman will end up dead at the end of the story, and in a most gruesome way. Therefore, the name seems to be ironic, as this is definitely not a lucky character.