Cryptocurrency is like digital money. Instead of coins or bills, it's like having special computer tokens that we can use to buy things.

Cryptocurrencies are stored in digital wallets, just like a piggy bank on the computer. We can send and receive them to other people easily.

The special thing about cryptocurrency is that it's secure and safe. It uses special math called cryptography to protect our money.

Cryptocurrency is also decentralized, which means nobody owns or controls it. It's like a big team of computers working together.

Some popular cryptocurrencies are Bitcoin and Ethereum. People use them to buy things online or even trade them for other currencies.