How is it decentralized? Perhaps people use the word differently. I don't understand the word "decentralized" to mean "not occupying a specific physical locat

How is it decentralized? Perhaps people use the word differently. I don't understand the word "decentralized" to mean "not occupying a specific physical location". To me it means more like "having many independent parts" or "not having a single point of failure". For example, land titles in the US, I believe, are decentralized. There is not one single national/federal list of who owns what. But having a blockchain is like having that list. I don't know if that is "centralized" in an absolute, yes/no way, but it seems more centralized.