WordNet (r) 3.0 (2006):
devalue v 1: remove the value from; deprive of its value [syn: devalue, devaluate] 2: lower the value or quality of; "The tear devalues the painting" 3: lose in value; "The dollar depreciated again" [syn: depreciate, undervalue, devaluate, devalue] [ant: appreciate, apprise, apprize, revalue]