密封 Save Sign in to save words On the HSK 7-9 vocabulary list, at CEFR level C2. mìfēng ㄇㄧˋ ㄈㄥ to seal up Character by character 密(mì)dense 封(fēng)confer A Chinese word or character, or English Search 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