Open English Wordnet
Nouns
(n)addict, nut, freak, junkie, junkysomeone who is so ardently devoted to something that it resembles an addiction“a golf addict”,
“a car nut”,
“a bodybuilding freak”,
“a news junkie” (n)addictsomeone who is physiologically dependent on a substance or activity Verbs
(v)addict, hookto cause (someone or oneself) to become dependent (on something, especially a narcotic drug)