To devalue something means to cause it to be thought less impressive or less deserving of respect.
例句
They spread tales about her in an attempt to devalue her work...他們散布一些有關她的流言，企圖貶低她的工作。Wabel's victory was in no way devalued by the absence of series leader Tom Fisher.瓦貝爾的勝利絕沒有因系列賽領先者湯姆·費希爾的缺陣而失色。
VERB
使(貨幣)貶值
To devalue the currency of a country means to reduce its value in relation to other currencies.
例句
India has devalued the Rupee by about eleven per cent...印度已將盧比貶值了約 11%。The Pound would be devalued, we were told...我們被告知英鎊將會貶值。