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English definition of “rare”

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rare

adjective  /reər/ us  

rare adjective (NOT COMMON)

not common and therefore sometimes valuable: rare species of birds Success like that is extremely rare. She’s usually positive, but on rare occasions disappointment shows through. With rare exceptions, the families in this town have lived here for generations.

rare adjective (SLIGHTLY COOKED)

[-er/-est only] (esp. of meat) not cooked for very long and still red inside: rare steak
(Definition of rare from the Cambridge Academic Content Dictionary © Cambridge University Press)
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