- 咸鸭蛋 xiányādàn salted duck eggsalty preserved duck egg, typically prepared by soaking eggs in brine; also called [[咸蛋|鹹蛋|xian2 dan4]]
- 吃鸭蛋 chīyādàn to score zeroto get a score of zero on a test or in a competition, based on the similarity in shape between the number 0 and a duck egg
- 鸭蛋青 yādànqīng pale bluea very light greenish-blue color, like the shell of a duck egg
- 鸭蛋圆 yādànyuán ovalan oval shape; specifically used to describe an oval face shape
- 鸭蛋粉 yādànfěn oval face powderAn oval-shaped compact powder or face powder used by women for makeup or skincare; also called [[蛋粉|蛋粉|dan4 fen3]]
- 鸭蛋脸 yādànliǎn oval facean oval face shape that is slightly full and rounded, often considered a beauty standard for women in traditional Chinese culture
- 鸭蛋脸儿 yādànliǎnr oval facean oval face shape, often considered an ideal of beauty for a woman; egg-shaped face
- 毛鸭蛋 máoyādàn balutboiled duck egg with a partly-developed embryo inside which is eaten directly from the shell