noun, noun or participle which takes 'suru', intransitive verb
Refers to the act of flying or soaring, often used in literary or formal contexts. Can be used as a noun or with する to mean 'to fly'.
鳥が大空を飛揚する。
The bird soars through the sky.
飛行 is the common word for flight or aviation, while 飛揚 is more literary and emphasizes soaring or rising into the air.
Composed of 飛 (to fly) and 揚 (to raise). The exact historical derivation is uncertain, but the combination naturally conveys the idea of flying upward.