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English definition of “junkie”

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junkie

noun [C] ( also junky)  /ˈdʒʌŋ·ki/ slang us  
a person who regularly takes and is dependent on illegal drugs, esp. heroin humorous A junkie is also a person who enjoys or is interested in a particular activity to an extreme: If you want to follow politics, basically you have to become a talk-show junkie.
(Definition of junkie from the Cambridge Academic Content Dictionary © Cambridge University Press)
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