(literary) medical practice or skills, specifically within traditional Chinese medicine; originally refers to a blue cloth bag used by ancient doctors to store medical books

(literary) the art of fortune-telling or divination; originally refers to a bag used by ancient practitioners to carry divination tools and texts

(literary) a blue bag used by ancient officials to carry and display their official government seals

(literary) another name for the 合欢 hé​huān or silk tree