Answer:
A currency in the most specific sense is money in any form when in use or circulation as a medium of exchange, especially circulating banknotes and coins. A more general definition is that a currency is a system of money in common use, especially for people in a nation.
Currency refers to how recent the information in a source is. More recent is often better . . but not always. For instance, newspapers and websites often contain instant, up-to-date information about a current event. This timeliness is appreciated in the moment
