therefore

adverb

there·​fore ˈt͟her-ˌfȯr 

: for that reason : because of that : consequently

Payment was received two weeks after it was due; therefore, you will be charged a late fee.

The cell phone is thin and light and therefore very convenient to carry around.

Synonyms of therefore

• so
• thus
• consequently
• hence

Examples of therefore in a Sentence

To understand what has happened to the earth's atmosphere—and, therefore, how our climate might change in the future—some ice-core scientists in the Arctic are training their eyes directly downward. —Bryan Walsh, Time, 18 Aug. 2008

Most Irish jump racing—and therefore most of the racing discussed in the book—is the laid-back pastime of enthusiasts … —Max Watman, New York Times Book Review, 9 Apr. 2006

A good approach to finding out what makes us humans so darn special would therefore be to get complete maps of the human and chimp genomes, and compare the two. —John Derbyshire, National Review, 7 Nov. 2005

Characteristically, however, Darwinists, like primitive economists, assume that what is humane—I use the word here, unexceptionably, as I believe, to mean whatever arises from the desire to mitigate competition and to put aside self-interest—is unnatural, and therefore wrong. —Marilynne Robinson, The Death of Adam, (1998) 2005

I was once sitting behind a newspaper in the Swansea common room while two engineers, i.e. lecturers in engineering, therefore by common consent philistines, chatted together. —Kingsley Amis, Memoirs, 1991

The cell phone is thin and light and therefore very convenient to carry around.

Payment was received two weeks after it was due; therefore, you will be charged a late fee.

Recent Examples on the Web

Expanding final assembly facilities must therefore be matched by reliable deliveries from suppliers and sufficient skilled labour across the wider production network. — Prabhat Ranjan Mishra, Interesting Engineering, 9 Oct. 2026

Pike has pneumonia and a blood clot in one of her arms, and is not able to swallow and therefore not eating, Spivey said Wednesday. — Karina Tsui, CNN Money, 8 Oct. 2026

Pocket Books and Penguin Books therefore specialized in classics that were in the public domain and in reprinting commercial and genre fiction, primarily mysteries, science fiction, and Westerns. — Literary Hub, 8 Oct. 2026

The future manager may therefore be neither simply smaller nor simply more AI-enabled. — Keith Ferrazzi, Fortune, 8 Oct. 2026

Word History

First Known Use

12th century, in the meaning defined above

Rhymes for therefore

• albacore
• alongshore
• antiwar
• anymore
• carnivore
• commodore
• dinosaur
• evermore
• furthermore
• guarantor
• herbivore
• heretofore

Kids Definition

therefore

adverb

there·​fore ˈt͟ha(ə)r-ˌfō(ə)r 

ˈt͟he(ə)r-, 

-ˌfȯ(ə)r

: for that reason : consequently

he lost the bet, therefore he must pay