Related by context. Frequent words. (Click for all words.) 60 Krypton 58 Kryptonian 57 Kal El 54 Superman 53 Jor El 51 Martian Manhunter 51 outer space 50 Luthor 49 Luke Skywalker 49 Superboy 48 superhero 48 alien spaceship 48 Darkseid 47 universe 46 Lois Lane 46 superhuman powers 46 spaceship 45 Lex Luthor 45 superheroine 45 Smallville 45 alien 45 Brainiac 45 extraterrestrial 45 planet 45 intergalactic 45 earthling 44 Astro Boy 44 interstellar 44 extra terrestrials 44 Marvel universe 44 Tatooine 44 Tom Welling 44 TARDIS 44 Earth 43 Zatanna 43 Klaatu 43 Victor Frankenstein 43 alternate universe 43 Batman 43 earth 43 telekinetic 42 titular character 42 Star Wars universe 42 Smoke Monster 42 supernova explosion 42 Red Skull 42 supervillain 42 Starkiller 42 evil wizard 42 Captain Marvel 42 superpowered 42 Martian 42 hyperspace 42 Wonder Woman 41 multiverse 41 Anakin 41 teleportation 41 Gene Roddenberry 41 Green Lantern Corps 41 Gamera 41 General Grievous 41 Earthlings 41 mysterious 41 aliens 41 Spock 41 Zod 41 Norman Osborn 41 Doctor Doom 41 comet Wild 41 Earthling 41 galactic 41 mutant 40 mankind 40 Aang 40 cryogenically frozen 40 distant galaxy 40 Hulk 40 alien invasion 40 Brandon Routh 40 Coruscant 40 Star Wars 40 cosmic 40 caped crusader 40 Obi Wan Kenobi 40 wormhole 40 superheroes 40 humankind 40 Galactus 40 Blue Beetle 40 cosmos 39 Twilight Zone episode 39 foundling 39 supernatural 39 Supergirl 39 Fantastic Four 39 Doc Ock 39 asteroid 39 symbiote 39 Mothra 39 Bruce Banner 39 Tyrannosaurus Rex