- [uncountable, countable] a clear precious stone of pure carbon, the hardest substance known. Diamonds are used in jewellery and also in industry, especially for cutting glass.
- a diamond ring/necklace
- She was wearing her diamonds (= jewellery with diamonds in it).
- a six-carat diamond
- a diamond mine
- The lights shone like diamonds.
Extra ExamplesTopics Clothes and Fashionb1- She was dripping with diamonds.
- earrings encrusted with diamonds
- a ring with a diamond in it
Oxford Collocations Dictionaryadjective- flawless
- perfect
- real
- …
- cut
- polish
- set
- …
- glitter
- sparkle
- mine
- industry
- trade
- …
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- [countable] a shape with four straight sides of equal length and with angles that are not right angles
- a sweater with a diamond pattern
- The eight vehicles assumed a diamond formation.
- diamonds[plural, uncountable] one of the four suits (= sets) in a pack of cards. The cards are marked with red diamond shapes.
- the ten of diamonds
- Diamonds are/is trumps.
- [countable] one card from the suit called diamonds
- You must play a diamond if you have one.
- [countable] (in baseball) the space inside the lines that connect the four bases; also used to mean the whole baseball fieldTopics Sports: ball and racket sportsc2
Word OriginMiddle English: from Old French diamant, from medieval Latin diamas, diamant-, variant of Latin adamans from Greek adamas, adamant-, ‘untameable, invincible’ (later used to denote the hardest metal or stone, hence diamond), from a- ‘not’ + daman ‘to tame’.
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diamond