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English definition of “solid”

solid

adjective (HARD)    /ˈsɒl.ɪd/ US  /ˈsɑː.lɪd/
B2 hard or firm, keeping a clear shape: solid ground a solid object a solid structureHard and firm B2 completely hard or firm all through an object, or without any spaces or holes: solid rock a solid oak table solid doors/walls a solid line of traffic The lecture hall was packed solid (with students).Hard and firm C1 describes a metal or a colour that is pure and does not have anything else mixed together with it: solid gold/silver candlesticks a white rose on a solid blue backgroundMetals and metalworkingChemical elementsMonochrome and multi-coloured
(Definition of solid adjective (HARD) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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