Poking around on a new computer is sometimes fun. I tried out the research feture of Internet Explorer and found ths definition from Encarta Dictionary.
Superman (noun):
1. exceptional man–a man possessing exceptional or superhuman strength, abilities, or powers
2. Nietzsche’s ideal man–according to the philosophy of Nietzsche, an ideal man who through creativity and integrity is able to transcend good and evil and is the goal of human evolution
When is the dictionary going to recognize the Superman is the most recognizable comic book character in history. The definition is a fair comparison, but if you ask anyone what does Superman mean, they will be respond with some description of the man of steel. In fact, the will also ask you who? not what is Superman.