Chinese words pronounced ku (any tone) 13 words, in the 3 tones ku is read in. kū (1st tone) 7 words 哭(kū) to cry 圣(kū) to dig with persistent effort 枯(kū) withered 窟(kū) cave 刳(kū) to cut open 哭(kū) to cry 聖(shèng) peerless 枯(kū) withered 窟(kū) cave 刳(kū) to cut open All 7 words pronounced kū kǔ (3rd tone) 2 words 苦(kǔ) bitter 楛(kǔ) broken utensil 苦(kǔ) bitter 楛(kǔ) broken utensil kù (4th tone) 4 words 库(kù) warehouse 裤(kù) underpants 酷(kù) ruthless 喾(kù) one of the five legendary emperors, also called 高辛氏 gāoxīnshì 庫(kù) warehouse 褲(kù) underpants 酷(kù) ruthless 嚳(kù) one of the five legendary emperors, also called 高辛氏 gāoxīnshì