1. 降低…的价值;贬低
    To devalue something means to cause it to be thought less impressive or less deserving of respect.

devalue的反义词

    e.g. They spread tales about her in an attempt to devalue her work...
           他们散布一些有关她的流言，企图贬低她的工作。
    e.g. Wabel's victory was in no way devalued by the absence of series leader Tom Fisher.
           瓦贝尔的胜利绝没有因系列赛领先者汤姆·费希尔的缺阵而失色。

2. 使(货币)贬值
    To devalue the currency of a country means to reduce its value in relation to other currencies.

devalue

    e.g. India has devalued the Rupee by about eleven per cent...
           印度已将卢比贬值了约 11%。
    e.g. The Pound would be devalued, we were told...
           我们被告知英镑将会贬值。