What is the meaning of 退?

chữ Hán form of thoái (“retreat; decline”)

chữ Hán form of thối (“retreat; repay”)

chữ Nôm form of thui (“to burn black”)

chữ Nôm form of thụi (“to thwack; to thump”)

chữ Nôm form of thói (“habit”)

chữ Nôm form of thối (“rotten; putrid; stinking”)

chữ Nôm form of thúi (“putrid; stinking”)

Source: wiktionary.org