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English definition of “gem”

gem

noun [C]
 
 
/dʒem/
STONE a valuable stone, especially one that has been cut to be used in jewelleryJewelleryPrecious and semi-precious stonesTypes of rock
SPECIAL PERSON/THING informal someone or something that you like very much and think is very special: She's an absolute gem.Virtue and moral good
(Definition of gem from the Cambridge Learners Dictionary © Cambridge University Press)
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