Definition of rarity noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈreərəti//
    ; NAmE NAmE//ˈrerəti//
    (pl. rarities)
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  1. 1[countable] a person or thing that is unusual and is therefore often valuable or interesting Women are still something of a rarity in senior positions in business. His collection of plants contains many rarities.
  2. 2(less frequent rareness) [uncountable] the quality of being rare The value of antiques will depend on their condition and rarity. Items like this have a certain rarity value.
  3. Word Originlate Middle English: from Latin raritas, from rarus ‘far apart, infrequently found’.
See the Oxford Advanced American Dictionary entry: rarity