Anything that is being used as a medium of exchange is money. Bitcoin, like gold, is money.
Yes bitcoin is a money because it exchanges value but it is not a currency by definition.
So instead of cryptocurruncy we should use cryptomoney for bitcoin.
I think its a currency by definition for me as I can easily convert it to fiat and use it anywhere I want and there are also many sites that are accepting bitcoin as a mode of payment and if bitcoin is giving me hard cash in my hands after exchanging it then it becomes money to me.