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English definition of “buddy”

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buddy

noun [C] uk   /ˈbʌd.i/ informal us  
a friend: Bob and I have been buddies for years. [as form of address] US ( also bud) used when talking to a man, sometimes in a friendly way but often when you are annoyed: Drink up and go home, buddy. someone who provides friendly help to someone with an illness or a problem: We run a buddy system to support recovering alcoholics.
(Definition of buddy from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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