Synonyms for Superman (same or very similar meaning)
WordNet sense 1 (a person with great powers and abilities):
demigod, UbermenschWordNet sense 2 (street name for lysergic acid diethylamide):
acid, dose, dot, pane, battery-acid, Elvis, Zen, back breaker, loony toons, Lucy in the sky with diamondsFrom the ODE community, based on WordNetadd/edit