hoarder
/ˈhoʊərdər/Definitions
1. noun
A person who accumulates and keeps a large amount of things, especially useless or worthless items, often to the point of cluttering their living space.
“She is a compulsive hoarder and struggles to get rid of any item that has sentimental value.”
2. verb
To accumulate and keep a large amount of things, especially in a way that is considered excessive or cluttered.
“He has been hoarding boxes in his garage for years, making it difficult to park his car.”