开心 Save Sign in to save words Traditional (Taiwan): 開心 On the HSK 2 vocabulary list, at CEFR level A2. kāixīn ㄎㄞ ㄒㄧㄣ to feel happy to rejoice to have a great time to make fun of sb Character by character 开(kāi)open 心(xīn)heart 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