约 ㄩㄝ yuē 定 ㄉㄧㄥ ˋ dìng 約 ㄩㄝ yuē 定 ㄉㄧㄥ ˋ dìng to agree on sth (after discussion) to conclude a bargain to arrange to promise to stipulate to make an appointment stipulated (time, amount, quality etc) an arrangement a deal appointment undertaking commitment understanding engagement stipulation