thereby

adverb

there·​by t͟her-ˈbī How to pronounce thereby (audio)
ˈt͟her-ˌbī
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, failing to infuse this team with appreciably more talent in the coming weeks, and thereby denying the Pats a real chance to march through the gauntlet that is their 2026 schedule, would be a cardinal sin of contending. Andrew Callahan, Boston Herald, 27 Feb. 2026 To retrieve the energy, the researchers added an acid and a hydrogen-evolution catalyst to cause the electrons stored in the system to combine with protons, thereby releasing hydrogen. Ameya Paleja, Interesting Engineering, 27 Feb. 2026 Institutional investors not only identify where demand for rental properties exceeds supply, thereby creating investment opportunities, but also address several other problems in the housing market. Adrian Moore, The Orlando Sentinel, 26 Feb. 2026 Upon closing, the Paramount deal will bring CBS Sports and Turner Sports under one roof, thereby creating a massive rights portfolio that includes the NFL, NHL, Major League Baseball, college football, the Masters, the UFC and March Madness. Anthony Crupi, Sportico.com, 26 Feb. 2026 See All Example Sentences for thereby

Word History

First Known Use

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

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

Cite this Entry

“Thereby.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thereby. Accessed 3 Mar. 2026.

Kids Definition

thereby

adverb
there·​by t͟ha(ə)r-ˈbī How to pronounce thereby (audio)
t͟he(ə)r-;
ˈt͟ha(ə)r-ˌbī
ˈt͟he(ə)r-
1
: by that : by that means
thereby lost her chance to win
2
: connected with or with reference to that
thereby hangs a tale

More from Merriam-Webster on thereby

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