A non-fungible token, or NFT, is a digital asset representing ownership of unique items or access to something, whether digital or physical. Most commonly, NFTs are used for digital collectibles.
Ownership and transfer of a Solartrip NFTs are secured by the Solana blockchain, ensuring that one NFT has only one owner at any given time and that nobody can modify the history of the token’s ownership.
You can read more about Solana here and more about NFTs on the Solana blockchain here
Further explanation
Non-fungible: “Non-fungible” means that something is unique and cannot be replaced.
Token: “Token” refers to a token on a blockchain, such as Solana. Many blockchain protocols allow people to build tokens on top of them, which can be capped at a certain amount or unlimited.