1. Items or things that are uncommon, scarce, or difficult to find; objects of special value due to their scarcity or uniqueness
The museum's collection includes many rare objects from ancient civilizations.
A coleção do museu inclui muitos objetos raros de civilizações antigas.
2. Collectible items or artifacts that are valuable because they are not frequently encountered
He spent years searching for rare objects to complete his collection.
Ele gastou anos procurando objetos raros para completar sua coleção.