This article is a qualitative description of the nouns reduplication comparison in Indonesian and Japanese language. Nouns are restricted to the category on the noun which can be counted (KBK). The data were taken from library source and analyzed by comparing the elements of similarity and difference. https://jzxmoghtk6n4c.nizarblog.com/35075230/functionalization-of-microcrystalline-cellulose-with-n-n-dimethyldodecylamine-for-the-removal-of-congo-red-dye-from-an-aqueous-solution