How do you use "therefore" in a sentence?

The train was delayed; therefore, we arrived late. She studied hard and therefore passed all her exams. I think, therefore I am.

therefore

Q: What does "therefore" mean?

For that reason; as a result; consequently Therefore is a formal adverb used to introduce a logical conclusion or result. It connects a cause with its effect or a premise with a conclusion. It is more formal than 'so' and is commonly used in academic and professional writing.

Vocabulary Word BritishAmerican ★★★★★ Very Common Neutral

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Meaning: For that reason; as a result; consequently

因此，所以

por lo tanto, por consiguiente

したがって、それゆえ

그러므로, 따라서

Therefore is a formal adverb used to introduce a logical conclusion or result. It connects a cause with its effect or a premise with a conclusion. It is more formal than 'so' and is commonly used in academic and professional writing.

therefore是一个正式副词，用于引出逻辑结论或结果。它连接原因与结果，或前提与结论。它比'so'更正式，常用于学术和专业写作中。

Therefore es un adverbio formal usado para introducir una conclusión o resultado lógico. Conecta una causa con su efecto o una premisa con una conclusión. Es más formal que «so» y se usa comúnmente en escritura académica y profesional.

thereforeは、論理的な結論や結果を導入するために使われる形式的な副詞です。原因と結果、または前提と結論を結びつけます。「so」よりも形式的で、学術的・専門的な文章でよく使われます。

Therefore는 논리적 결론이나 결과를 제시할 때 사용하는 격식체 부사입니다. 원인과 결과, 또는 전제와 결론을 연결합니다. 'so'보다 격식적이며, 학술적·전문적 글쓰기에서 주로 사용됩니다.

Examples

The train was delayed; therefore, we arrived late.
火车晚点了，因此我们迟到了。
El tren se retrasó; por lo tanto, llegamos tarde.
電車が遅れたため、私たちは遅刻しました。
기차가 지연되어 우리는 늦게 도착했습니다.
She studied hard and therefore passed all her exams.
她努力学习，因此通过了所有考试。
Estudió mucho y por lo tanto aprobó todos sus exámenes.
彼女は一生懸命勉強したので、すべての試験に合格しました。
그녀는 열심히 공부했기 때문에 모든 시험에 합격했습니다.
I think, therefore I am.
我思故我在。
Pienso, luego existo.
我思う、ゆえに我あり。
나는 생각한다, 고로 나는 존재한다.

Pronunciation

Usage Guide

Context: general

Tone: neutral

Origin & History

From Old English 'þǣr fore' meaning 'for that' or 'on that account'. A compound of 'there' + 'for', functioning as a logical connector since the earliest period of English.

Cultural Context

Era: Modern

Generation: All ages

Social background: Universal

Story & Trivia

The famous phrase 'Cogito, ergo sum' (I think, therefore I am) was written by philosopher René Descartes in 1637. It became one of the most quoted philosophical statements, making 'therefore' forever associated with logical reasoning.