Meaning of yīn:
yīn
因
Noun
old variant of 因[yin1]; cause; reason
Tā yīn wèi shēng bìng méi lái xué xiào.
他因为生病没来学校。
He didn't come to school because he was sick.
Dà yǔ shì jiāotōng dǔsè de zhǔyào yīnsù.
大雨是交通堵塞的主要因素。
The heavy rain is the main cause of the traffic jam.
Tā de shībài yǒu hěn duō yuányīn, qízhōng zuì zhǔyào de yīgè yuányīn shì quēfá zhǔnbèi.
他的失败有很多原因，其中最主要的一个原因是缺乏准备。
There are many reasons for his failure, the main one being a lack of preparation.
Conjunction
because
Wǒ chídào le, shì yīnwèi dǔchē.
我迟到了，是因为堵车。
I was late because of the traffic jam.
