回荡

回荡	huí dàng	to resound / to reverberate / to echo
回	huí	to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)
回	huí	to curve / to return / to revolve
回	huí	variant of 回
荡	dàng	variant of 荡
荡	tàng	variant of 烫 / variant of 趟
荡	dàng	to wash / to squander / to sweep away / to move / to shake / dissolute / pond