Mao Collection, Upper Volume Radical: Heart (xīn) Character: gu Kangxi stroke count: 9 Page 380, Entry 21 Compendium of Rhymes (Jiyun): gu, written as gu in ancient times. Note detailed in Enclosure (wéi) radical, five strokes. Jade Chapters (Yupian): Pronounced gu. Means to protect, to leak, firm, constant, and at peace.