Bitcoin can be used to pay for things electronically if both parties are willing. In that sense, its like conventional dollars, euros, or yen, which are also traded digitally.
But is it differs from fiat digital currencies in several important ways?
Bitcoin is a decentralized currency so no one, even the government is there centralizing and having the power over it, the characteristics of Bitcoins ascent in tandem with commodities like gold and oil or technology stocks that managed to survive the last tech bubble, it is easier to clarify Bitcoins position within the context of past performance and how that may relate to the coins outlook while traditional currency is the opposite of it, the government has a say about it and relies on centralized entities like payment processors, central banks, commercial banks, government and etc. Another thing that differs both of the currencies from each other is, bitcoin has a limited supply, unlike the traditional currency. it has unlimited supply. They can issue new money as per the need of ut and manipulate its value relative to other currency.