口子 On the HSK 7-9 vocabulary list, at CEFR level C2. kǒuzi ㄎㄡˇ ˙ㄗ hole opening cut gap gash my husband or wife classifier for people (used for indicating the number of people in a family etc) precedent Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT