there·by | \t͟her-ˈbī, 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

If the Bucks are going to trade down, offloading a salary or bringing back a mix of current and future picks — thereby building their stock of assets for the present and future — might be the best option. Matt Velazquez, Milwaukee Journal Sentinel, "Besides pick, Bucks face other decisions on draft night," 18 June 2018 The lawsuit contends that Biglari has led the company to invest hundreds of millions of dollars in the Lion Funds, which uses the money to buy shares of Biglari Holdings, thereby increasing his ownership of company stock. Richard Webner, San Antonio Express-News, "Biglari company hit with federal fine for lack of public disclosure," 1 June 2018 There are many ways to address it, short of letting the addicts feed their disease and thereby create a permanent underclass of users. Christine M. Flowers,, "I don't speak language of compassion on injection sites | Christine Flowers," 16 Feb. 2018 In East Asia, the samurai wasp parasitizes between sixty and ninety per cent of brown marmorated stinkbug eggs, thereby almost single-handedly keeping its population under control. Steven Strogatz, The New Yorker, "When Twenty-Six Thousand Stinkbugs Invade Your Home," 8 Aug. 2011 The question is whether cumulative shoddiness undermines The Post’s credibility and thereby its moral authority. Steve Erickson, Los Angeles Magazine, "As the Oscars Approach, These 3 Movies Rise Above the Rest," 27 Feb. 2018 Very cold oil keeps the basil from heating up in the blender, thereby preserving its bright color. Sunset, "Grilled Shrimp with Basil Lemon Pistou," 22 Jan. 2018 Sterling K Brown has joined the cast of the Blake Lively spy thriller The Rhythm Section, thereby putting it in the running for Most Charismatic Movie of 2019. Emma Dibdin, Harper's BAZAAR, "Sterling K Brown Joins Blake Lively In What May Be 2019's Most Charismatic Movie," 1 June 2018 Now a promising scheme aims to offer more effective help to the most frequent users, thereby reducing their reliance on the emergency services. The Economist, "The patients who call emergency services dozens of times a year," 1 May 2018

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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Phrases Related to thereby

thereby hangs a tale

Statistics for thereby

Last Updated

21 Oct 2018

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Time Traveler for thereby

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

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English Language Learners Definition of thereby

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


there·by | \t͟her-ˈbī \

Kids Definition of thereby

: by that He tripped and thereby lost the race.

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Comments on thereby

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


a state of commotion or excitement

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