Search the dictionary A Chinese word or character, or English Draw a character Search 9 entries. suǒyǐ 所以 therefore suōyī 蓑衣 woven rush raincoat zhīsuǒyǐ 之所以 (after a noun N and before a predicate P) the reason why N P suǒyǐrán 所以然 the reason why wànghūsuǒyǐ 忘乎所以 to get carried away bùzhīsuǒyǐ 不知所以 to not know the reason zhīqíránérbùzhīqísuǒyǐrán 知其然而不知其所以然 to know that it is so but not why it is so suōyījiéshí 缩衣节食 to economize on clothes and food suōyījiéshí 縮衣節食 to economize on clothes and food