A proper noun "flint" represents a city in michigan, a community in texas, and a town in wales.
A hard, fine-grained quartz that fractures conchoidally and generates sparks when struck against a material such as steel, because tiny chips of the steel are heated to incandescence and burn in air.
A piece of flint, such as a gunflint, used to produce a spark by striking it with a firestriker.
A small cylinder of some other material of the same function in a cigarette lighter, etc.
A type of maize/corn with a hard outer hull.
(figurative) Anything figuratively hard.
(transitive) To furnish or decorate an object with flint.