唐とう三さん盆ぼんとうさんぼんじ字FuriganaMeanings1nounhigh-grade white sugar imported from Chinahistorical termHistorical term for a fine white sugar brought from China, often associated with traditional Japanese confectionery. Compare 三盆 (さんぼん), which refers to a domestically produced fine sugar.See also: 三盆唐とう三さん盆ぼんは、江え戸ど時じ代