Chinese idiom · 成语
风吹草动
Meaning
Grass moves when the wind blows; slight signs of trouble.
Character by character
Origin and story
Literary usageA light wind makes grass move: the everyday image became a way to speak of the smallest sign of activity. An early recorded use appears in the Dunhuang narrative Wu Zixu Bianwen (伍子胥變文). In this literary retelling of Wu Zixu’s flight, he fears capture by the king of Chu and hides at the slightest movement before continuing toward Wu.
The expression therefore carries a strong association with alertness, secrecy, or fear, though it can also refer neutrally to a minor development. Later writers use it without any connection to literal wind or plants.
Sources and further reading
In everyday life
项目还没正式公布，市场上一点风吹草动都会引来猜测。
The project has not been announced yet, so the slightest market development prompts speculation.
Often follows 一有 or 一点 and refers to small signs of change.