Binance has two internal tokens - BNB and BUSD. The BNB coin is designed to support the platform ecosystem and has many use cases. For example, it can be used to:
receive up to 50% discount on transaction fees;
purchases of tokens in the Launchpad section;
use staking and receive dividends through Launchpool;
use as a gas in BNB Chain transactions;
pay for goods and trading services on the exchange.