緩緩(huan huan)同音桓桓(huan huan)
緩聲母h韻母uan,同音字並組詞:還(huan)交還,還給,還回。換(huan)交換,不換,改頭換面,換頭像,換掉,換個姿勢。煥(huan)煥然一新,煥發新活力,煥然。渙(huan)渙然冰釋,渙散。環(huan)環衞,環繞,銅環,環境污水。歡(huan)歡聲笑語,歡喜