Alternative form of 風 (“wind”)

a leaf of a tree, especially one that falls in autumn

to dance / to twirl; to rotate or spin / (archaic or in fixed compounds) to keep moving; to move continuously

(transitive or intransitive) blow (of wind, to move; or to cause air to move) / (intransitive) spout (as a gas or liquid, out of something)

to fall as if dancing; to flutter down

to dance

Alternative spelling of 鞴

a (single) blast of air (wind, etc.)

(idiomatic) to surprise someone, to scare the hell out of

Used to describe butterfly effect. For want of a nail the kingdom was lost.