Synonyms: addict
Definition: someone who is physiologically dependent on a substance; abrupt deprivation of the substance produces withdrawal symptoms
Similar words: drug user, substance abuser, user
Definition: a person who takes drugs
Synonyms: 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
Similar words: partisan, partizan, enthusiast
Definition: an ardent and enthusiastic supporter of some person or activity
Definition: to cause (someone or oneself) to become dependent (on something, especially a narcotic drug)
Similar words: habituate, accustom
Definition: make psychologically or physically used (to something)
Usage: She became habituated to the background music