proposition /prəpəˈziʃən/ n. ［c］ 1. 论点，主张：The tailor made a proposition to buy out his rival’s business. 这成衣商主张将他竞争对手的生意全部买下。 2. 建议，提案：champion a proposition 支持一项提案；the rational proposition 合理的建议 3. 命题：a proposition stated so well that it needs no explanation 一个叙述清楚而无需解释的命题