Other forms: currencies
A currency is the kind of money a country uses. Foreign currency, the local currency, a currency crisis.
Currencies are named and coded: pounds sterling as GBP, euros as EUR, yen as JPY. Exchange rates move between them constantly. Hard currency means one widely trusted and accepted, and a currency union is a group of countries sharing one. Figuratively, currency means general acceptance: the idea has gained currency, which is a common and useful phrase. Note cryptocurrency, and that currency comes from the idea of running or circulating.
1nouncurrencyThe kind of money a country uses.
“The currency lost about a third of its value in nine months.”
2noungeneralGeneral acceptance of an idea.
“The theory gained currency in about the 1970s.”
currency is money in use.
Medieval Latin
currentia
English, today
currency
Borrowed from Medieval Latin currentia, from la + currēns.
Etymology from Wiktionary, CC BY-SA