What is NFT basically

[Victorik]

Basically, an NFT is a unique unit of data that allows digital content ranging from videos, music and images to be logged on blockchain, that can be sold and traded.
I hope this answers your question.

[X-ray]

honestly, it’s kinda simple, in layman terms NFT could acts like a certificate for the real goods, basically helps you in authenticating the real deal and the fake ones.
this is also the reason right now NFT are so popular because it could be literally being taken advantage of in various things like game items and arts that requires unique identification between each others.
so basically each NFT is different with each other, even if it has the same name there is some aspect that could determine the uniqueness giving it that vibes of scarcity and thus having unique value in the eyes of someone that’s are interested in these NFT.