1
: one that hacks
2
: a person who is inexperienced or unskilled at a particular activity
a tennis hacker
3
: an expert at programming and solving problems with a computer
4
: a person who illegally gains access to and sometimes tampers with information in a computer system
Examples of hacker in a Sentence
My friends and I have been playing golf for years, but we're still just a bunch of hackers.
the company's security experts spent days trying to figure out how a hacker could have gotten past the firewall
Recent Examples on the Web
We have all got used to reading about how best to mitigate the risk of hackers attacking your smartphone, or Windows computer, and hardware threats continue to evolve as recent reports of attackers using your GPU to steal your passwords prove.
—
Davey Winder, Forbes.com, 14 Apr. 2025
If a hacker tries to intercept the data, the system detects it immediately and blocks unauthorized access.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 14 Apr. 2025
The news comes a month after Twitter was targeted by a group of pro-Palestinian hackers who managed to disable the site for several hours.
—Gordon G. Chang, MSNBC Newsweek, 8 Apr. 2025
Kaspersky suspects hackers are exploiting a hole in the supply chain for counterfeit Android phones to install the malware.
—Michael Kan, PC Magazine, 2 Apr. 2025
See All Example Sentences for hacker
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Davey Winder, Forbes.com, 14 Apr. 2025
If a hacker tries to intercept the data, the system detects it immediately and blocks unauthorized access.
—Kurt Knutsson, Cyberguy Report, FOXNews.com, 14 Apr. 2025
The news comes a month after Twitter was targeted by a group of pro-Palestinian hackers who managed to disable the site for several hours.
—Gordon G. Chang, MSNBC Newsweek, 8 Apr. 2025
Kaspersky suspects hackers are exploiting a hole in the supply chain for counterfeit Android phones to install the malware.
—Michael Kan, PC Magazine, 2 Apr. 2025
See All Example Sentences for hacker
Cite this Entry
“Hacker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hacker. Accessed 19 Apr. 2025.
Copy CitationKids Definition
hacker
noun
hack·er
ˈhak-ər 
1
: one that hacks
2
: a person who is unskilled at a particular activity
3
: an expert at programming and solving problems with a computer
4
: a person who illegally gains access to a computer system
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