$BNB the native token of the Binance exchange, one of the largest by market capitalization. It is used to reduce trading fees, participate in token sales on Binance Launchpad, staking, and DeFi services. $BNB is also used in the BNB Chain network to pay for gas in smart contracts. The token has a deflationary mechanism - regular burning, which reduces the total supply in circulation. Its price is closely related to the Binance ecosystem and market sentiment. $BNB is often considered an infrastructure asset, similar to Binance's 'shares' in the cryptocurrency world.