ad·dic·tion əˈdikSHən noun noun: addiction; plural noun: addictions 1. the fact or condition of being addicted to a particular substance, thing, or activity. “he committed the theft to finance his drug addiction” synonyms: dependency, dependence, habit, problem devotion to, dedication to, obsession with, infatuation with, passion for, love of, mania for, enslavement to “a slavish addiction to fashion” One little word. So much power. One word. So much ….