This is the 3089th most frequent Japanese word.
乱舞
"乱舞" (ranbu) means "wild dance" or "chaotic frenzy of dancing."
乱舞 is used here to describe the chaotic yet beautiful movement of petals swaying and spiraling in the wind.
桜の花びらが春風に乗って美しく乱舞している。
The cherry blossom petals are beautifully dancing in chaos in the spring breeze.
乱舞 describes the lively and scattered movements and bursts of fireworks in this scene.
夜空に広がる花火が鮮やかに乱舞する。
The fireworks spread across the night sky, dancing vibrantly in chaos.
In this usage, 乱舞 captures the unrestrained and dynamic performance of the festival dancers.