Chinese words pronounced gu (any tone) 55 words, in the 3 tones gu is read in. gū (1st tone) 17 words 孤(gū) lone 姑(gū) paternal aunt 箍(gū) hoop 沽(gū) to buy 估(gū) to estimate 孤(gū) lone 姑(gū) paternal aunt 箍(gū) hoop 沽(gū) to buy 估(gū) to estimate All 17 words pronounced gū gǔ (3rd tone) 26 words 股(gǔ) thigh 古(gǔ) ancient 骨(gǔ) bone 谷(gǔ) grain 鼓(gǔ) drum 股(gǔ) thigh 古(gǔ) ancient 骨(gǔ) bone 穀(gǔ) grain 鼓(gǔ) drum All 26 words pronounced gǔ gù (4th tone) 12 words 故(gù) happening 顾(gù) to look after 固(gù) hard 雇(gù) to employ 锢(gù) obstinate disease 故(gù) happening 顧(gù) to look after 固(gù) hard 雇(gù) to employ 錮(gù) obstinate disease All 12 words pronounced gù