1. A narcotics addict
   - drug addict, junkie 
2. Someone who is so ardently devoted to something that it resembles an addiction
   - addict, nut, freak, junkie

Type of: addict, enthusiast, partisan, partizan

Encyclopedia: Junky

• -cracy
• -crat
• -cyte
• -ectomy
• -eer
• -esque
• -ess
• -ette
• -ferous
• -graphy
• -hedron
• -ible
• -iferous
• -ise
• -ish
• -ize
• -meister
• -metry
• -nomy
• -oholic
• -onym
• -opia
• -osis
• -pathy
• -phile