内涵与外延的反变关系

即“内涵与外延的反比关系”，见该条。

• 鸭舌草
• 鸭艄
• 鸭茵
• 鸭虱
• 鸭蛋
• 鸭蛋圆
• 鸭蛋圆儿
• 鸭蛋形长圆形
• 鸭蛋脸
• 鸭蛋脸面
• 鸭蛋青
• 鸭行鹅步
• 鸭见砻糠——空欢喜
• 鸭跖草
• 鸭雏
• 鸭黄
• 鸭黄儿
• 鸮
• 鸮响
• 鸮啼鬼啸
• 鸮张
• 鸮心鹂舌
• 鸮王
• 鸮音
• 鸮鸟声翼
• back-breaking
• backbreaking/back-breaking
• back burner
• back catalogue
• backcatalogue
• backcloth
• backcloths
• back country
• backdate
• back-date
• backdated
• backdates
• backdating
• back-down
• back down
• back drawing board
• backdrop
• backdropped
• backdropping
• backdrops
• backdropt
• backed
• backed off
• backed-out
• backed-up