1 [C,U] a hard, bright precious stone which is very expensive and is used for making jewellery. A diamond usually has no colour. 钻石;金刚钻
2 [C] a flat shape that has four sides of equal length and points at two ends 菱形
☞picture at shape 见shape插图
3diamonds [pl] the group (suit) of playing cards with red shapes like diamonds(2) on them 红方块花色的纸牌:
the seven of diamonds方块七☞Look at the note and picture at card. 参看card的注释及插图。
4 [C] one of the cards from this suit (扑克中的一张)方块牌:
I haven't got any diamonds.我没有方块牌。