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English definition of “flint”

flint

noun [C or U]     /flɪnt/
(a piece of) shiny grey or black stone that is like glass Types of rockPrecious and semi-precious stones (a piece of) stone or metal used in a musket to make it fire or in a cigarette lighter to produce a flame Heaters and burnersParts of guns
(Definition of flint noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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