If something is non-fungible, it means that it cannot be replaced. It represents something unique in value - and that's what an NFT is!  The token part of Non-Fungible Token refers to a digital certificate stored on a publicly verifiable distributed database, also known as a blockchain. The information on this digital certificate, also known as a smart contract, makes each NFT unique. No two NFTs can be swapped, and this makes them non-fungible. Examples of NFTs include digital art, collectibles, virtual reality items, crypto domain names, ownership records for physical items, and more!