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rare

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adjective rare pronunciation in British English /reə(r)/ 
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adjectiverare
comparativerarer
superlativerarest
  1. 1
    not happening very often

    In a rare moment of honesty, he told her what he had done.

    it is rare (for someone) to do something:

    It's extremely rare for her to lose her temper.

    1. a.
      not often seen or found, and therefore admired or valued very much

      This is one of the rarest plants in the collection.

      He has a rare talent for managing people.

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