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 With this critical exclusion, Americans remain vulnerable to cyber threats and incidents in their daily lives. Setu Kulkarni, Forbes, 14 June 2021 The level of sophistication of these hackers is a force to be reckoned with said Poppy Gustafsson, CEO of Darktrace, a company that provides services to protect businesses from cyber threats. Sophie Mellor, Fortune, 9 June 2021 Senior officials at the Federal Bureau of Investigation for years have likened the need to confront rising cyber threats to the post-9/11 scramble against international terrorism. Aruna Viswanatha, WSJ, 4 June 2021 In March, Molson Coors announced a cyber attack that affected its production and shipping. The Salt Lake Tribune, 2 June 2021 With Colonial Pipeline vulnerable to adversarial cyber threats, soaring gas prices were in no one’s holiday plans this year. Charles Beames, Forbes, 27 May 2021 There is growing awareness on Capitol Hill of the need to gird against cyber threats to critical US infrastructure. Clare Duffy, CNN, 20 May 2021 The initiative, announced Tuesday by the Energy Department, encourages owners and operators of power plants and electric utilities to improve their capabilities for identifying cyber threats to their networks. Eric Tucker, Star Tribune, 20 Apr. 2021 The breach exposed vulnerabilities in the supply chain as well as weaknesses in the federal government’s own cyber defenses. Alan Suderman, ajc, 20 Apr. 2021

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.

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First Known Use of cyber


1992, in the meaning defined above

History and Etymology for cyber



Combining form


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Statistics for cyber

Last Updated

18 Jun 2021

Cite this Entry

“Cyber.” Dictionary, Merriam-Webster, Accessed 21 Jun. 2021.

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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


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