Collins COBUILD Advanced Learner's English Dictionary - currency

(currencies) Frequency: The word is one of the 3000 most common words in English. 1. The money used in a particular country is referred to as its currency. Tourism is the country’s top earner of foreign currency... More people favour a single European currency than oppose it. N-VAR 2. If a custom, idea, or word has currency, it is used and accepted by a lot of people at a particular time. (FORMAL) ‘Loop’ is one of those computer words that has gained currency in society. = acceptance N-UNCOUNT 3. see also common currency