陰 Simplified: 阴 On the HSK 2 vocabulary list, at CEFR level A2. yīn ㄧㄣ overcast (weather) cloudy shady Yin (the negative principle of Yin and Yang) negative (electric.) feminine moon implicit hidden genitalia 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