Englishfor English speakers
flint
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noun
a hard kind of stone; a form of silica more opaque than chalcedony
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adjective
(= flinty, obdurate)
showing unfeeling resistance to tender feelings
his flinty gaze
the child's misery would move even the most obdurate heart
Flint
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noun
a river in western Georgia that flows generally south to join the Chattahoochee River at the Florida border where they form the Apalachicola River
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noun
a city in southeast central Michigan near Detroit; automobile manufacturing
clay
Noun
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Clay is a type of mud or dirt that can be made into bricks and pots.