Main entry: addict
Definition: someone who is physiologically dependent on a substance; abrupt deprivation of the substance produces withdrawal symptoms
Main entry: addict, freak, nut, junkie, junky
Definition: someone who is so ardently devoted to something that it resembles an addiction
Usage: a golf addict; a car nut; a bodybuilding freak; a news junkie
Definition: to cause (someone or oneself) to become dependent (on something, especially a narcotic drug)