孔 cavity, hole, slit, very, great, exceedingly 4 strokes jōyō, taught in secondary school old JLPT 1 #2052 in newspapers Readings Onコウ、ク Kunあな In Chinese 孔 Words written with it 孔子 こうし Confucius 瞳孔 どうこう pupil (of the eye) 孔雀 くじゃく peafowl (incl. the male peacock