- [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. 金刚石；钻石 a diamond ring/necklace 钻石戒指／项链 She was wearing her diamonds (= jewellery with diamonds in it). 她戴着钻石首饰。 a six carat diamond 一颗六克拉的钻石 a diamond mine 金刚石矿 The lights shone like diamonds. 灯光像钻石一样闪闪发亮。
Extra ExamplesTopics Clothes and Fashionb1an old woman dripping with diamonds 挂满钻石的老妇人 earrings encrusted with diamonds 镶有钻石的耳环 a ring with a diamond in it 钻石戒指
Oxford Collocations Dictionaryadjective- flawless
- perfect
- real
- …
- cut
- polish
- set
- …
- glitter
- sparkle
- mine
- industry
- trade
- …
- [countable]
a shape with four straight sides of equal length and with angles that are not right angles 菱形 a sweater with a diamond pattern 菱形图案的毛衣 The eight vehicles assumed a diamond formation. 八辆车呈菱形。
- diamonds[plural, uncountable]
one of the four suits (= sets) in a pack of cards. The cards are marked with red diamond shapes. （纸牌的）方块 
the ten of diamonds 方块十 Diamonds are/is trumps. 钻石是王牌。
- [countable]
one card from the suit called diamonds （一张）方块牌 - [countable]
(in baseball 棒球 the space inside the lines that connect the four bases; also used to mean the whole baseball field 内场；棒球场
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’.