12345678910111213141516171819KeywordshreddergratergrindstoneFrequency#6622Strokes19ReadingscǎMnemonic石 (stone) gives the meaning and 蔡 the sound.Stroke orderComposed of石rock蔡a species of tortoiseUsed in vocabulary礤cǎshredder; grater (kitchen implement for grating vegetables); grindstone