Chinese learners move from characters to idioms as the highest level. This free resource explains 「空穴來風」 below.
This time, our spotlight is on the idiom 「空穴來風」. Its meaning and how it’s applied are described below.
Wind can only come in because there is a cave. Metaphorically, the spread of news and rumors is not entirely without reason. It also refers to rumors taking advantage of any opportunity to spread.
The Mandarin pronunciation of this idiom is :
kōng xué lái fēng
while its Cantonese pinyin is :
hung1 yut6 loi4 fung1
The sheer number of Chinese idioms and their varied meanings make them fascinating to study. Let these materials assist you as you advance your Chinese skills and understanding.

