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English definition of “diamond”

diamond

noun
 
 
/ˈdaɪəmənd/
STONE [C, U] B2 a very hard, transparent stone that is extremely valuable and is often used in jewellery: a diamond ringPrecious and semi-precious stonesTypes of rock
SHAPE [C] B2 a shape with four straight sides of equal length that join to form two large angles and two small anglesGeometrical shapesSpherical, circular and annular objects
BASEBALL [C] the field where baseball is playedBaseball and roundersGeneral terms used in ball sports
diamonds playing cards with red, diamond shapes on them: the queen of diamondsPlaying cards
(Definition of diamond from the Cambridge Learners Dictionary © Cambridge University Press)
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