wind
飌 centers on wind, the moving air itself. It is a rare, complex character for the same idea as the common 風.
飌 is a rare variant of 風 (wind), formed by adding the phonetic component 雚 to the standard wind character. The exact historical development is uncertain, but it likely served to reinforce the sound or distinguish a specific usage.
The right side is 風 (wind), and the left side 雚 looks like a complex structure. Imagine a strong wind blowing through an intricate lattice, making a whistling sound.
For フウ, imagine the wind blowing through a flute: flute -> フウ, and the wind makes the flute sing.