One who, or that which, heats.
Any contrivance or implement, as a furnace, stove, or other heated body or vessel, etc., used to impart heat to something, or to contain something to be heated.
A pistol or other carryable firearm; as, gunmen with their heaters bulging in their pockets.
An inclosed place in which heat is produced by the combustion of fuel, as for reducing ores or melting metals, for warming a house, for baking pottery, etc.; as, an iron furnace; a hot-air furnace; a glass furnace; a boiler furnace, etc.
A place or time of punishment, affiction, or great trial; severe experience or discipline.
To throw out, or exhale, as from a furnace; also, to put into a furnace.