The best words I can think of to describe cryptocurrency is digital cash. A cryptocurrency transaction is different from an online credit card transaction because the sender cannot reverse the transaction once it is sent and confirmed by the blockchain.

Credit cards can be a nuisance to both businesses and consumers. Chargebacks affect businesses' ability to operate and make profits. For consumers, millions of their legitimate transactions have declined because of companies adopting overly strict transaction rules. Some consumers face the inconvenience of being verified before being able to conduct transactions. Read more at https://www.hamishwebb.com