digital currency
US /ˈdɪdʒɪtl ˈkɜːrənsi/
UK /ˈdɪdʒɪtl ˈkɜːrənsi/

1.
monnaie numérique
a form of currency that is available only in digital or electronic form, not in physical (such as banknotes and coins) form
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Bitcoin is a well-known example of a digital currency.
Le Bitcoin est un exemple bien connu de monnaie numérique.
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Many countries are exploring the use of their own digital currencies.
De nombreux pays explorent l'utilisation de leurs propres monnaies numériques.