約 Simplified: 约 On the HSK 3 vocabulary list, at CEFR level B1. yāo ㄧㄠ to weigh in a balance or on a scale yuē ㄩㄝ to make an appointment to invite approximately pact treaty to economize to restrict to reduce (a fraction) concise Where 約 is used Example sentences and grammar articles using 約 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