Bitcoin is really a true currency/money. Why? because once you have it you can convert into a real money according to country you belong. And the banks also accepting bitcoin whether you are in different places of the world. In that case it shows how bitcoin is very popular in online business.
I also think that is very simple bitcoin does have value that can be used in transaction and i also do agree that it can be converted to fiat for other transaction so I is definitely a money itself but for me it is not just a money it self or sound like money because it is a way better form of money that can be used in transaction with the form of crypto currency.