From Longman Dictionary of Contemporary Englishdiamonddi‧a‧mond /ˈdaɪəmənd/ ●●○ S3 noun 1 STONE[countable, uncountable]DCJ a clear, very hard valuable stone, used in jewellery and in industry a diamond engagement ring2 SHAPE[countable]CF a shape with four straight but sloping sides of equal length, with one point facing directly up and the other directly down Cut the cookie dough into diamonds.3 ON A PLAYING CARD a) DGC diamonds one of the four suits (=types of cards) in a set of playing cards, which has the design of a red diamond shape on ittwo/queen etc of diamonds the ace of diamonds b) [countable]DGC a card from this suit You have to play a diamond.4 SPORTS FIELD[countable] a) DSBthe area in a baseball field that is within the diamond shape formed by the four bases b) DSBthe whole playing field used in baseball
Examples from the Corpus
diamond• a diamond necklace• The beautiful diamond ring had gone.• It was like Aladdin's cave with the Seven Dwarves diamond mine thrown in.• We had beautiful chandeliers, women in diamonds and mink stoles.• After washing and change of lap paper, polishing is continued with 1 µm diamond.• the king of diamonds• Weighed down with rubies, sapphires, emeralds, pearls, diamonds.• Because the diamond is absorbing blue light, it appears yellow in ordinary light.• With clubs wide open to make the contract you're going to need to try and bring the diamonds in without loss.Origin diamond (1200-1300) Old French diamant “hard metal, diamond”, from Greek adamas; → ADAMANT 