devaluede·val·ue /diːˈvæljuː/ verb1[transitiveT]MARKETING to cause something to lose its valueHeavy price discounting will devalue our famous brands.
3[intransitiveI]ECONOMICS when a country’s currency devalues against others, it loses its valueWith more money coming into circulation, the ruble may devalue further.
—devaluation noun [countableC, uncountableU]the pound’s devaluation after sterling withdrew from the European Exchange Rate Mechanism