Longman Dictionary of Contemporary English homepage

Date: 1200-1300
Language: French
Origin: gemme, from Latin gemma 'bud, jewel'

gem

noun
     
gem
Related topics: Jewellery
gem [countable]
1DCJ also gem stone a beautiful stone that has been cut into a special shape [= jewel]:
precious gems
2 something that is very special or beautiful:
Every single ad in the campaign has been a gem.
The Fortune is a tiny gem of a theatre.
gem of
little gems of advice
3 a very helpful or special person:
Ben, you're a real gem!

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