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

These phytonutrients protect against oxidative stress and chronic inflammation, thereby boosting immunity and helping reduce your risk of heart disease and diabetes. Jaclyn London, Ms, Rd, Cdn, Good Housekeeping, "Fact: Cabbage Packs the Same Nutritional Benefits as Kale," 7 Jan. 2019 America could thereby lead the way in developing the clean technologies of the future and solving the most pressing global challenge of our time. Ryan Costello, WSJ, "Lesson From 2018: Republicans Must Deal With Climate Change," 7 Jan. 2019 After that, the pulse could be squeezed again, packing more light into a tiny area of space, thereby dramatically increasing the pulse's intensity. Jennifer Ouellette, Ars Technica, "2018 physics Nobel Prize honors 3, including first woman in 55 years," 2 Oct. 2018 Animators can specify how densely those particles are packed in different regions of the cloud, thereby defining its shape. Jennifer Ouellette, Ars Technica, "New software will let artists control how light interacts with objects," 30 Nov. 2018 The idea is anyone anywhere in the world can download these patterns and cut them using CNC machines and local makers thereby decentralizing manufacturing. Diana Budds, Curbed, "4 lessons Mexican designers can teach the world," 19 Oct. 2018 As a result, the $21.4 billion ETF has sold 3.8 million Facebook shares since April, more than half of its holdings, according to FactSet, thereby avoiding a sizable slice of Facebook’s 21% tumble since July 25. Asjylyn Loder, WSJ, "Index Quirk Helps Vanguard Fund Dodge Facebook Fall," 1 Aug. 2018 And the metal tariffs would impose similar hardships on other manufacturing industries, while imposing even greater costs on the nation’s construction industry — thereby increasing the obstacles to commercial development. Eric Levitz, Daily Intelligencer, "Trump Bids Goodbye to Gary Cohn – And Empirical Reality," 7 Mar. 2018 The nuclear option would be for WTO members to invoke Article 9, which allows voting where consensus isn’t possible, thereby providing a mechanism to override the U.S. veto. Simon Nixon, WSJ, "Trump Puts the WTO on the Ropes," 11 July 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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Last Updated

14 Jan 2019

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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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More from Merriam-Webster on thereby

Rhyming Dictionary: Words that rhyme with thereby

Spanish Central: Translation of thereby

Nglish: Translation of thereby for Spanish Speakers

Britannica English: Translation of thereby for Arabic Speakers

Comments on thereby

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tremendous in size, volume, or degree

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