1) American comics title 2) Dark Horse Comics character 3) DC Comics superhero 4) Golden Age superhero 5) Paratrooper 6) Slang for an aeronaut 
Skyman is the name of two fictional superheroes from the DC Comics Universe. ==Sylvester Pemberton== DC Comics` Skyman was the original Star-Spangled Kid, Sylvester Pemberton, a Golden Age character. He became the Star-Spangled Kid in order to battle Nazism during World War II. He was unique in that he was a kid superhero who had an adult sidekic....
• (n.) An aeronaut.
Sky'man noun ; plural - men . An aëronaut. [ Slang] 
Skyman is slang for an aeronaut.