thereby

adverb

there·​by t͟her-ˈbī 

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

Lanterns works so well in part because it was conceived as a standalone complete story, albeit one with ramifications for future DCU projects, thereby freeing up the writers to create something truly unique, with no forced, awkward tie-ins. — Jennifer Ouellette, ArsTechnica, 19 Oct. 2026

Safe haven demand temporarily outweighed inflation fears, prompting capital to exit risk assets and flow into the Treasury market, thereby pulling yields lower. — CNBC, 16 Oct. 2026

By the time Lee’s moved on to thanking his dad for not believing him, thereby giving him something to prove, an embarrassed Frances is making a quick run for the exit. — Amanda Whiting, Vulture, 15 Oct. 2026

Someone from Hästens will come to your bedroom thrice a year to massage, fluff and flip those layers, thereby dispensing with whatever malformations your body may have inflicted upon its perfect design and making everything right in the world again. — Jaklin Romine oct. 15, Los Angeles Times, 15 Oct. 2026

Word History

First Known Use

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

Phrases Containing thereby

• thereby hangs a tale

Rhymes for thereby

• abscissae
• adonai
• alibi
• alkali
• alumni
• amoebae
• amplify
• annuli
• beautify
• brachii
• butterfly
• calculi

Kids 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