所以

suǒ yǐ
HSK 2Conjunction (连)Noun (名)

Basic Meaning

conj
Commonly used in the pattern "因为...所以..." (because... so...).
so; therefore (used in the second clause to indicate result)
表示因果关系，用在下半句表示结果。
Words:
所以明白所以清楚
Synonyms:
故而因此因而故此是以于是以是是故
Antonyms:
因为由于
Sentences:
  1. 因(yīn)为(wèi)下(xià)雨(yǔ)，所(suǒ)以(yǐ)我(wǒ)们(men)取(qǔ)消(xiāo)了(le)野(yě)餐(cān)。
    Because it was raining, so we canceled the picnic.
  2. 他(tā)努(nǔ)力(lì)学(xué)习(xí)，所(suǒ)以(yǐ)考(kǎo)试(shì)得(dé)了(le)高(gāo)分(fēn)。
    He studied hard, so he got a high score on the exam.
conj
Often used in the pattern "之所以...是因为..." (the reason why... is because...).
the reason why (used in the first clause to introduce something that needs explanation, with the second clause giving the reason)
表示因果关系，用在上半句，提出需要说明原因的事情，下半句说明原因。
Words:
之所以所以知道
Synonyms:
因此由此是以是故故而故此
Antonyms:
因为由于
Sentences:
  1. 他(tā)之(zhī)所(suǒ)以(yǐ)迟(chí)到(dào)，是(shì)因(yīn)为(wèi)堵(dǔ)车(chē)了(le)。
    The reason why he was late is because there was a traffic jam.
  2. 我(wǒ)之(zhī)所(suǒ)以(yǐ)喜(xǐ)欢(huān)这(zhè)本(běn)书(shū)，是(shì)因(yīn)为(wèi)故(gù)事(shì)很(hěn)有(yǒu)趣(qù)。
    The reason why I like this book is because the story is very interesting.
conj
Emphasizes the causal relationship by restating it in a more detailed way.
that's why (used to further explain a cause, with the structure "是...所以...的原因")
表示因果关系，上半句先说明原因，下半句用“是……所以……的的原因（缘故）”进一步解释。
Words:
所以熟悉所以理解
Synonyms:
于是因此因而故此是以是故
Antonyms:
因为由于
Sentences:
  1. 他(tā)经(jīng)常(cháng)练(liàn)习(xí)，这(zhè)是(shì)他(tā)所(suǒ)以(yǐ)进(jìn)步(bù)快(kuài)的(de)原(yuán)因(yīn)。
    He practices often, that's why he improves quickly.
  2. 天(tiān)气(qì)很(hěn)好(hǎo)，这(zhè)是(shì)我(wǒ)们(men)所(suǒ)以(yǐ)选(xuǎn)择(zé)今(jīn)天(tiān)出(chū)门(mén)的(de)原(yuán)因(yīn)。
    The weather is good, that's why we chose to go out today.
conj
Typically used in spoken language to summarize or emphasize a point.
that's why (used alone as a sentence to mean 'the reason is right here')
表示因果关系，单独成句，表示“原因就在这里”。
Synonyms:
因此因而是以以是是故故此
Antonyms:
因为由于
Sentences:
  1. 所(suǒ)以(yǐ)呀(yā)，要(yào)不(bù)然(rán)我(wǒ)怎(zěn)么(me)这(zhè)么(me)说(shuō)呢(ne)！
    That's why I said that!
n
Found in idioms like 忘乎所以, 不知所以, and 忘其所以.
proper reason or appropriate behavior (used only in fixed phrases as an object)
实在的情由或适宜的言行举止（限用于固定词组中做宾语）。
Words:
忘乎所以不知所以忘其所以
Sentences:
  1. 他(tā)成(chéng)功(gōng)后(hòu)就(jiù)有(yǒu)点(diǎn)忘(wàng)乎(hū)所(suǒ)以(yǐ)了(le)。
    After his success, he became a bit carried away.
  2. 听(tīng)到(dào)这(zhè)个(ge)消(xiāo)息(xī)，他(tā)一(yì)时(shí)不(bù)知(zhī)所(suǒ)以(yǐ)。
    Upon hearing this news, he was momentarily at a loss.

Characters Breakdown

HSK 2
suǒ所

place; location

HSK 2
yǐ以

with; using; by means of