harbinger

預兆、前兆、徵兆正式

Falling leaves are often seen as a harbinger of winter.

落葉常被視為冬天將至的前兆。

先驅、先聲正式

That small startup was the harbinger of a new industry.

那間小型新創公司是一個新產業的先驅。

預示、預告正式

The sudden silence harbingered trouble for the whole village.

突然的寂靜預示著整個村莊將有麻煩。