there·​by | \ t͟her-ˈbī How to pronounce thereby (audio) , ˈt͟her-ˌbī \

Definition of thereby

1 : by that : by that means thereby lost her chance to win
2 : connected with or with reference to that thereby hangs a tale— William Shakespeare

Examples of thereby in a Sentence

He signed the contract, thereby forfeiting his right to the property.
Recent Examples on the Web Many HOAs fall short in this area, thereby creating unnecessary membership upset. Kelly G. Richardson, San Diego Union-Tribune, "HOA Homefront: Surprised by assessments – are they legal?," 10 Oct. 2020 Because the sensor conformed perfectly to the skin, wearers could walk around without jarring it and thereby reducing data quality. Scott Hershberger, Scientific American, "New Pen-and-Ink Method Draws Health Sensors Directly on Skin," 18 Aug. 2020 Laughter and the sound of fun times fill the air, thereby creating yet another outlet for kids to be kids. Rick Menning,, "Homework haven: Learning center offers students an escape," 2 Oct. 2020 For years, the world has watched and waited for China to become more like a free-market economy, thereby reducing American security concerns. Daniel Rosen, WSJ, "China Backslides on Economic Reform," 22 Sep. 2020 Onsite assembly is quicker than traditional building methods, thereby reducing expenses like crane rentals, labor and waste. Jonathan Tirone,, "Silicon Valley Falls for European Climate Tech Made of Timber," 21 Sep. 2020 The statement alleges that the law firm has photographs and video footage proving that Kious has been operating her salon since April, thereby violating California's coronavirus restrictions. Sarah Midkiff,, "Nancy Pelosi’s Salon Scandal Is More Complicated Than You Think," 3 Sep. 2020 Their admittedly counterintuitive idea was to develop an onboard system that would electrically charge the aircraft to just the right level, thereby significantly reducing the probability of being struck by lightning. Jennifer Ouellette, Ars Technica, "How “St. Elmo’s fire” could help protect aircraft from lightning strikes," 20 Aug. 2020 By extending this rule to all insurance plans and members, CMS would reward insurers for investing in clinical care and unlocking additional dollars to help patients get and stay healthy, thereby avoiding huge costs to the health care system. Michael Darrouzet, STAT, "Health care reform: The ‘new normal’ needs to go beyond clinical care," 7 July 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'thereby.' 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 thereby

before the 12th century, in the meaning defined at sense 1

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Time Traveler for thereby

Time Traveler

The first known use of thereby was before the 12th century

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Last Updated

18 Oct 2020

Cite this Entry

“Thereby.” Dictionary, Merriam-Webster, Accessed 29 Oct. 2020.

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More Definitions for thereby


How to pronounce thereby (audio)

English Language Learners Definition of thereby

formal : by means of that act, those words, that document, etc.


there·​by | \ t͟her-ˈbī How to pronounce thereby (audio) \

Kids Definition of thereby

: by that He tripped and thereby lost the race.

More from Merriam-Webster on thereby

Nglish: Translation of thereby for Spanish Speakers

Britannica English: Translation of thereby for Arabic Speakers

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