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grand slam [countable]
1 also Grand Slam trademarkDS the winning of all of a set of important sports competitions in the same year : 
Wales won the Grand Slam.
Wales won the Grand Slam.2DSB a hit in baseball which gets four points because it is a home run and there are players on all the bases
3DGC the winning of all of the tricks possible in one game of cards, especially in bridge
