Onyomi Examples
搗鉱機 （トウコウキ） stamp mill, stamping mill, stamp battery
搗精 （トウセイ） rice polishing (removing the shell of brown rice to leave white rice)
Kunyomi Examples
搗く （つく） to hull (rice, barley, etc.), to pound (rice), to polish (rice), to stamp (ore)
褐色 （かちいろ） dark indigo (almost black)