1.
desire for possession; possessiveness; acquisitive desire
The desire to own things or to have something exclusively for oneself. Can refer to material possessions, relationships, or abstract things.
所有欲が強い。
To have a strong desire for possession.
所有欲を満たすために買い物をする。
To shop in order to satisfy the desire for possession.
年を取るにつれて物に対する所有欲が薄れてきた。
As I've gotten older, my desire for possessing things has faded.
Part of the ～欲 (desire for ~) word family, which includes 支配欲 (desire for control), 独占欲 (desire to monopolize), and 購買欲 (desire to buy). The word can carry a negative connotation when describing excessive materialism or controlling behavior in relationships. Common collocations: 所有欲が強い (to be possessive), 所有欲を満たす (to satisfy one's possessiveness).