currency

n. money; circulation; custom, prevalence

A currency is a unit of exchange, facilitating the transfer of goods and/or services. It is one form of money, where money is anything that serves as a medium of exchange, a store of value, and a standard of value. A currency is the dominant medium of exchange. To facilitate trade between currency zones, there are exchange rates, which are the prices at which currencies (and the goods and services of individual currency zones) can be exchanged against each other. Currencies can be classified as either floating currencies or fixed currencies based on their exchange rate regime. In common usage, currency sometimes refers to only paper money, as in coins and currency, but this is misleading. Coins and paper money are both forms of currency.
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Noun
1. the metal or paper medium of exchange that is presently used
(hypernym) medium of exchange, monetary system
(hyponym) money
2. general acceptance or use; "the currency of ideas"
(hypernym) prevalence
3. a current state of general acceptance and use
(synonym) vogue
(hypernym) acceptance
4. the property of belonging to the present time; "the currency of a slang term"
(synonym) currentness, up-to-dateness
(hypernym) presentness, nowness
(hyponym) modernity, modernness, modernism, contemporaneity, contemporaneousness
(attribute) current

(n.)
The state or quality of being current; general acceptance or reception; a passing from person to person, or from hand to hand; circulation; as, a report has had a long or general currency; the currency of bank notes.
  

(n.)
That which is in circulation, or is given and taken as having or representing value; as, the currency of a country; a specie currency; esp., government or bank notes circulating as a substitute for metallic money.
  

(n.)
Fluency; readiness of utterance.
  

(n.)
Current value; general estimation; the rate at which anything is generally valued.
  

(n.)
A continued or uninterrupted course or flow like that of a stream; as, the currency of time.
  

See Money .