1. (

• drug_addict ,
• junkie ,
• junky

) a narcotics addict ;

2. (

• addict ,
• nut ,
• freak ,
• junkie ,
• junky ,

) someone who is so ardently devoted to something that it resembles an addiction; "a golf addict"; "a car nut"; "a bodybuilding freak"; "a news junkie" ;