My grandmother's keepsake is my treasure.
This pot has been passed down for generations as a family treasure.
picture of a treasure ship
Refers specifically to a picture of a treasure ship (宝船), often associated with New Year's good luck imagery. This is a specialized sense; see 宝船 for more details.
See also: 宝船
Some households display a picture of a treasure ship at New Year's.
Slang or casual euphemism for money, often used playfully or in contexts like fundraising or budgeting.
I'm saving up money for a trip.
I'm gradually saving up my allowance money.
On New Year's morning, people sleep with a treasure-ship picture under their pillow.
The family has protected that ring as their treasure.
貴重品 is a neutral, practical term for valuables (like passports or jewelry kept safe), whereas お宝 carries a warmer, more personal or playful nuance.
宝 is the plain noun for 'treasure', while お宝 adds the polite prefix お and is the more commonly used, gentler-sounding form in everyday speech.
宝船 is the treasure ship itself (or its picture) tied to New Year's luck, while お宝 in that same sense specifically means the picture of the ship, not the ship as a concept.
Polite form of 宝 (treasure) with the honorific prefix お. The slang sense for 'money' likely developed from the idea of valuables.