窩 Simplified: 窝 On the HSK 7-9 vocabulary list, at CEFR level C2. wō ㄨㄛ nest pit or hollow on the human body lair den place to harbor or shelter to hold in check to bend classifier for litters and broods 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