- a current medium of exchange in the form of coins and banknotes; coins and banknotes collectively.
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cur·ren·cy read as ˈkərənsē (noun)
-a system of money in general use in a particular country.
So, is bitcoin money or currency?
By definition "a type of digital currency in which encryption techniques are used to regulate the generation of units of currency and verify the transfer of funds, operating independently of a central bank."
So one can say Bitcoin can be called a currency for the virtual world but it can not be called Money because in the physical world it has no value.