If you want to get into semantics, a currency something that is generally accepted or in use, meaning used by many people and organizations. For Bitcoin, trans

If you want to get into semantics, a currency something that is generally accepted or in use, meaning used by many people and organizations. For Bitcoin, transaction volume is not a good indicator of this because many of the trades (estimated >80%) these days are HFTs. Bitcoin is an asset for sure, but not a real currency.