This is the 1365th most frequent German word.
bitcoin
Bitcoin: A decentralized digital currency using blockchain technology.
In this instance, 'Bitcoin' represents the general idea or system behind the cryptocurrency.
Das Konzept von Bitcoin revolutioniert das traditionelle Finanzsystem.
The concept of Bitcoin is revolutionizing the traditional financial system.
In this sentence, 'Bitcoin' is used as a singular noun referring to the cryptocurrency unit.
Ich habe gestern meinen ersten Bitcoin gekauft.
I bought my first Bitcoin yesterday.
Here, 'Bitcoins' is used in plural form to indicate multiple units of the cryptocurrency.