既然 vs 因为: what is the difference?
因为 gives a reason the listener may not know. 既然 refers to a fact both sides already accept: 既然你已经来了，就坐下吧. It leads to a suggestion or a decision, not to a plain result.
| Word | Pinyin | What it does | Structure |
|---|---|---|---|
| 既然 | jìrán | Starts a clause stating a fact both people already accept, as the basis for a conclusion. | 既然 + known fact, + 就 + conclusion |
| 因为 | yīn wèi | Gives the reason for a result, and the reason may be news to the listener. | 因为 + reason, 所以 + result |
既然 (jìrán)
Starts a clause stating a fact both people already accept, as the basis for a conclusion.
Structure: 既然 + known fact, + 就 + conclusion
| Chinese | Pinyin | English |
|---|---|---|
| 既然你累了，就早点儿休息吧。 | Jì rán nǐ lèi le, jiù zǎo diǎnr xiū xi ba. | Since you are tired, get some rest early. |
| 既然天已经黑了，我们就别出去了。 | Jì rán tiān yǐ jīng hēi le, wǒ men jiù bié chū qu le. | Since it is already dark, let us not go out. |
| 既然你喜欢这本书，我就送给你。 | Jì rán nǐ xǐ huan zhè běn shū, wǒ jiù sòng gěi nǐ. | Since you like this book, I will give it to you. |
Not: 既然下雨，所以我们不去了。 既然 pairs with 就, not 所以: 既然下雨，我们就不去了.
因为 (yīn wèi)
Gives the reason for a result, and the reason may be news to the listener.
Structure: 因为 + reason, 所以 + result
| Chinese | Pinyin | English |
|---|---|---|
| 因为下雪，所以飞机晚点了。 | Yīn wèi xià xuě, suǒ yǐ fēi jī wǎn diǎn le. | Because of the snow, the plane was delayed. |
| 我没去，因为我生病了。 | Wǒ méi qù, yīn wèi wǒ shēng bìng le. | I did not go because I was ill. |
| 因为他很努力，所以成绩越来越好。 | Yīn wèi tā hěn nǔ lì, suǒ yǐ chéng jì yuè lái yuè hǎo. | Because he works hard, his grades keep getting better. |
Not: 因为你已经来了，就坐下吧。 To urge something because of a fact you both accept, use 既然: 既然你已经来了，就坐下吧。
Where this comes from
The comparison is part of 既然…就…: since/given that (HSK 4) in the grammar reference, which has the full explanation, more worked examples, and what to learn before and after it.
More pairs: 因为 vs 为了 · 按照 vs 根据 · 不敢 vs 不能 · 及时 vs 立刻 · 记住 vs 记得 · 渐渐 vs 逐渐 · 将近 vs 大约 · 竟然 vs 居然 · 看不懂 vs 没看懂 · 了 vs 过 · 连…都 vs 连…也 · 没有 vs 不如 · all 81 pairs.
Frequently asked questions
What is the difference between 既然 and 因为?
因为 gives a reason the listener may not know. 既然 refers to a fact both sides already accept: 既然你已经来了，就坐下吧. It leads to a suggestion or a decision, not to a plain result.
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