Definitions of Hannibal:

• noun:   a town in northeast Missouri on the Mississippi River; boyhood home of Mark Twain
• noun:   general who commanded the Carthaginian army in the second Punic War; crossed the Alps and defeated the Romans but was recalled to defend Carthage and was defeated (247-182 BC)
• name:  A surname (very rare: popularity rank in the U.S.: #22228)