noun \ˈha-kər\

computers : a person who secretly gets access to a computer system in order to get information, cause damage, etc. : a person who hacks into a computer system

: a person who plays a sport badly

Full Definition of HACKER

:  one that hacks
:  a person who is inexperienced or unskilled at a particular activity <a tennis hacker>
:  an expert at programming and solving problems with a computer
:  a person who illegally gains access to and sometimes tampers with information in a computer system

Examples of HACKER

  1. My friends and I have been playing golf for years, but we're still just a bunch of hackers.
  2. <the company's security experts spent days trying to figure out how a hacker could have gotten past the firewall>

First Known Use of HACKER

14th century

Other Computer-Related Terms

adware, flash, kludge, phishing, recursive, router


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