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
The price of bitcoin spiked by more than $1,000 after the bogus tweet by the hackers on Jan. 9, 2024.
—
Dan Mangan, CNBC, 10 Feb. 2025
The organization did not disclose how the hackers gained access to the data or whether proper cybersecurity measures were in place at the time of the breach.
—Kurt Knutsson, Cyberguy Report, Fox News, 8 Feb. 2025
The hackers also modified Dewji’s account settings so that other users could not respond to his new posts.
—John Hyatt, Forbes, 5 Feb. 2025
But the hacker did access passwords for older, internal Grubhub systems, risking a wider breach of the food delivery app’s databases.
—Michael Kan, PCMAG, 4 Feb. 2025
See all Example Sentences for hacker 
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Dan Mangan, CNBC, 10 Feb. 2025
The organization did not disclose how the hackers gained access to the data or whether proper cybersecurity measures were in place at the time of the breach.
—Kurt Knutsson, Cyberguy Report, Fox News, 8 Feb. 2025
The hackers also modified Dewji’s account settings so that other users could not respond to his new posts.
—John Hyatt, Forbes, 5 Feb. 2025
But the hacker did access passwords for older, internal Grubhub systems, risking a wider breach of the food delivery app’s databases.
—Michael Kan, PCMAG, 4 Feb. 2025
See all Example Sentences for hacker
Articles Related to hacker
Dictionary Entries Near hacker
Cite this Entry
“Hacker.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hacker. Accessed 21 Feb. 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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