What is ONT?

Can you explain to me what ONT is? I've heard it mentioned in the context of blockchain and cryptocurrency, but I'm not entirely sure what it stands for or what its purpose is. Is it a type of token or coin? What makes it unique and different from other cryptocurrencies? And how can it be used or applied in the real world? I'm eager to learn more about this and how it fits into the broader cryptocurrency and blockchain ecosystem.