noun · To activate or invoke the magical power of a talisman.

他通过飞符之术来驱散邪气。

noun · A talisman painted with magical symbols, believed to possess supernatural powers.

道士在法事中焚烧了一道飞符。

noun · A tiger tally (military authorization token) dispatched with great speed or urgency.

前线传来了加急的飞符，命令立即出兵。