DC Comics is one of the leading American comic book publishers, known as comics. DC Comics is part of the Time Warner conglomerate. The initials "DC" are an abbreviation of "Detective Comics", but have also been diverted from their original meaning, by Marvel Comics, to designate DC as the "Distinguished Competition". DC Comics has a large number of well-known characters including Superman, Batman, Wonder Woman, Robin, Aquaman, Hawkman, Hawkwoman, Green Arrow, Black Canary, Cyborg, Martian Manhunter, Green Lantern and Flash, as well as the Justice League superhero team, and the Injustice League as well as antagonists such as Lex Luthor, the Joker, Bizarro, Captain Cold, Cheetah, the Riddler, Mr. Freeze, Catwoman, Sinestro, the Penguin, Poison Ivy, Two-Face, General Zod, Brainiac and Darkseid.