1 [C] a thing or a person that is unusual and is therefore often valuable or interesting 罕有的东西或人: Women lorry drivers are still quite a rarity. 女货车司机仍然是很少见的。

2 [U] the quality of being rare 稀有；罕有: The rarity of this stamp increases its value a lot. 这枚邮票因罕有而大幅升值。