What is BNB used for?

Could you please elaborate on the usage of BNB? I'm curious to know what purposes it serves in the cryptocurrency and finance industry. As a professional in this field, I'm sure you have a deep understanding of its functionalities and applications. Could you share some insights on how BNB is being utilized and its significance in the current market? I'm particularly interested in knowing how it differs from other cryptocurrencies and what unique advantages it offers. Thank you for taking the time to answer my questions.