What do you mean by money?
In everyday conversation, money is something you use to pay. Bitcoin can serve that role between willing participants. You do not need a physical object for a payment to be real; the system keeps a digital record.
Bitcoin is not issued by a government. Its rules and how it is accepted differ from the national currency you may use for everyday spending. Legal treatment depends on where you are; this page does not make a claim about legal status.
What would acceptance look like?
Imagine a repair shop agrees to accept bitcoin for a repair. You both agree on the payment and the shop's confirmation requirement. That is a use of bitcoin as money between you.
A nearby grocery shop might accept only local currency. The repair shop's choice does not require the grocery shop to follow it. You still need to know what the recipient accepts before preparing a payment.
Does money mean stable value?
No. Bitcoin's price can change. An amount that covers a purchase now might not cover the same purchase later. Think separately about whether you can send it, whether someone accepts it and what that amount can buy.