property; possession; belongings
Refers to something owned by a person or entity; a formal or legal term for one's possessions.
This land is my property.
彼の所有物はすべて競売にかけられた。
All his possessions were put up for auction.
所有物 is a formal, legal-sounding word for owned property, while 持ち物 is the everyday word used in casual and school contexts.
Compound of 所有 (shoyū, 'ownership') + 物 (butsu, 'thing'). The reading is on'yomi throughout.