cy·​ber | \ ˈsī-bər How to pronounce cyber (audio) \

Definition of cyber

 (Entry 1 of 2)

: of, relating to, or involving computers or computer networks (such as the Internet) the cyber marketplace

Definition of cyber- (Entry 2 of 2)

: computer : computer network cyberspace

Examples of cyber in a Sentence

Recent Examples on the Web: Adjective

Intelligence officials, cyber experts, and political campaigns have long been bracing for the possibility that these attacks could escalate through November 6. Benjamin Wofford, Vox, "The midterms are already hacked. You just don’t know it yet.," 25 Oct. 2018 Brook Conner, a 49-year-old Hawaii resident and cyber security expert, told the New Yorker on the day of the alert. De Elizabeth, Teen Vogue, "FEMA to Test Presidential Alert Wireless Emergency System," 15 Sep. 2018 The cyber divisions problems won’t end when the shutdown does. Joseph Marks, The Seattle Times, "Shutdown hits FBI cyber investigations hard, agents say," 23 Jan. 2019 But the upgrades coming should make the service more reliable and accurate for civilians, more secure against those who want to jam military users, and more cyber-secure for everyone. Joe Pappalardo, Popular Mechanics, "USAF's Next-Gen GPS Satellites Will Be a Huge Upgrade...Eventually," 26 Dec. 2018 Photo by Alex Wong/Getty Images The US Department of Justice has charged two Chinese hackers accused of a vast and global cyber campaign to steal business and technology secrets. Jen Kirby, Vox, "US charges Chinese government-linked hackers accused of a decade-long global cyber campaign," 20 Dec. 2018 Zhu Hua and Zhang Shilong were part of a Chinese hacking group known in the cyber security community as Advanced Persistent Threat 10, or APT10, according to the indictment. Sean O'kane, The Verge, "Chinese hackers charged with stealing data from NASA, IBM, and others," 20 Dec. 2018 Pentagon's new cyber strategy lists Russia, China as biggest threats. Fox News, "FOX NEWS FIRST: Questions surround Kavanaugh's accuser after investigation demands; New hope for nuke-free N. Korea," 19 Sep. 2018 The man, who lives with his parents in the western German state of Hesse, targeted people whose public comments had angered him, said Georg Ungefuk, a spokesman for the Frankfurt prosecutor’s office unit that fights cyber crime. Ruth Bender, WSJ, "German Hacking Arrest Quells Fears Attack Was Foreign Backed," 8 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cyber.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of cyber


1992, in the meaning defined above

History and Etymology for cyber



Combining form


Keep scrolling for more

Learn More about cyber

Statistics for cyber

Last Updated

26 Feb 2019

Look-up Popularity

Time Traveler for cyber

The first known use of cyber was in 1992

See more words from the same year

Keep scrolling for more

More Definitions for cyber

English Language Learners Definition of cyber-

: computer



Kids Definition of cyber-

: relating to computers or computer networks

More from Merriam-Webster on cyber

Britannica English: Translation of cyber for Arabic Speakers

Comments on cyber

What made you want to look up cyber? Please tell us where you read or heard it (including the quote, if possible).


grandiloquent, ostentatious, or bombastic

Get Word of the Day daily email!

Test Your Vocabulary

Original Meanings Quiz

  • rembrandt-painting-a-young-scholar-and-his-tutor
  • Which of the following is the earliest known sense of the word awe?
Spell It

Can you spell these 10 commonly misspelled words?


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!