For the sake of newbies, it's better not to use the term crypto currency to address Bitcoin as this can often turn out to be misleading and pass the wrong idea about Bitcoin. I feel it'll be more appropriate to call it a digital asset instead of crypto currency as digital asset best describes the nature of Bitcoin and not crypto currency. Using the term crypto currency will only make people see or compare Bitcoin to all of them shitcoins, which is not only an insult to Bitcoin but also the biggest misconception an investor or anyone would have about Bitcoin. So it's best to completely avoid the using the term crypto currency when talking about Bitcoin.