devaluation

n. /ˌdiːvæljuˈeɪʃn/ C1

（货币）贬值

An official reduction in the exchange value of a currency.

仙境例句

After the devaluation, the shop changed its price cards, and a penny bought only half a cake.

货币贬值以后，店里换了价格卡，一便士只能买半块蛋糕了。