superhero

Etymology

From super- + hero. First attested in 1917.

noun

1. Any fictional crime-fighting character, often with supernatural powers or equipment, in popular children's and fantasy literature; a fictional hero who does great things.
2. (by extension) A particularly renowned real-world hero, or one who has seemingly impossible abilities.
   Did you know your community has many invisible superheroes? Each day they perform hundreds of amazing feats that make the community a better place in which to live. 1991, Boys' Life, volume 81, number 1, page 42
   The power is out but you're watching TV? You must be a superhero.
   Thanks for driving out here and towing me out of the ditch. You're a superhero!