type of stock character usually possessing "supernatural or superhuman powers" and dedicated to protecting the public
A superhero or superheroine is a stock character that possesses abilities beyond those of ordinary people, who typically uses his or her powers to help the world become a better place, or is dedicated to protecting the public, and fighting crime. Superhero fiction is the genre of fiction that is centered on such characters, especially in American comic books since the 1930s (and later Hollywood films), as well as in Japanese media (including kamishibai, tokusatsu, manga, anime, and video games) since the 1930s.
Superheroes come from a wide array of different backgrounds and origins. Some superheroes (for example, Batman and Iron Man) derive their status from advanced technology they create and use, while others (such as Superman and Spider-Man) possess non-human or superhuman biology or study and practice magic to achieve their abilities (such as Zatanna and Doctor Strange). While the Dictionary.com definition of "superhero" is "a figure, especially in a comic strip or cartoon, endowed with superhuman powers and usually portrayed as fighting evil or crime", the longstanding Merriam-Webster dictionary gives the definition as "a fictional hero having extraordinary or superhuman powers; also: an exceptionally skillful or successful person." Terms such as masked crime fighters, costumed adventurers or masked vigilantes are sometimes used to refer to characters such as the Spirit, who may not be explicitly referred to as superheroes but nevertheless share similar traits.
Some superheroes use their powers to help fight daily crime while also combating threats against humanity from supervillains, who are their criminal counterparts. Often at least one of these supervillains will be the superhero's archenemy. Some popular supervillains become recurring characters in their own right; and long-running superheroes and superheroines such as Batman, Superman, Wonder Woman, Spider-Man, Captain America, and Iron Man have a rogues gallery of many such villains.
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