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Definition of hacker noun from the Oxford Advanced Learner's Dictionary

hacker

noun
 
/ˈhækə(r)/
 
/ˈhækər/
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  1. a person who uses computers to get access to data in somebody else's computer or phone system without permissionTopics Crime and punishmentc1, Computersc1 see also phone hacker
    Oxford Collocations DictionaryHacker is used after these nouns:
    • computer
    See full entry
  2. (informal) a person who uses or writes computer programs with enthusiasm and skill
    • The software is so complicated that only experienced hackers can use it.
    Topics Computersc1
See hacker in the Oxford Advanced American Dictionary

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