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
William ShakespeareExamples of thereby in a Sentence
He signed the contract, thereby forfeiting his right to the property.
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Imagine wanting to see a play—ostensibly, in part, for the liveness of a play—but mistrusting your judgment enough to read a review first, thereby lessening your opportunity for surprise.
—Lauren Rothery, Harpers Magazine, 19 Sep. 2025
Apitegromab blocks myostatin, a natural protein that normally limits muscle growth, thereby increasing muscle mass and strength.
—Sasirekha Subramanian, Forbes.com, 19 Sep. 2025
Rather, the authors suggest that intoxication lowers language anxiety, thereby increasing one's foreign language proficiency, although further research would be needed to support that hypothesis.
—ArsTechnica, 18 Sep. 2025
Some research suggests that acupuncture increases microcirculation (blood circulation in the smallest blood vessels) and thereby reduces inflammation in the body.
—Tom Gavin, EverydayHealth.com, 17 Sep. 2025
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Lauren Rothery, Harpers Magazine, 19 Sep. 2025
Apitegromab blocks myostatin, a natural protein that normally limits muscle growth, thereby increasing muscle mass and strength.
—Sasirekha Subramanian, Forbes.com, 19 Sep. 2025
Rather, the authors suggest that intoxication lowers language anxiety, thereby increasing one's foreign language proficiency, although further research would be needed to support that hypothesis.
—ArsTechnica, 18 Sep. 2025
Some research suggests that acupuncture increases microcirculation (blood circulation in the smallest blood vessels) and thereby reduces inflammation in the body.
—Tom Gavin, EverydayHealth.com, 17 Sep. 2025
See All Example Sentences for thereby
Cite this Entry
“Thereby.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/thereby. Accessed 23 Sep. 2025.
Copy CitationKids Definition
thereby
adverb
there·by
t͟ha(ə)r-ˈbī 
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
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