A forge provides the intense heat needed to soften metal before it is hammered, bent, welded, or tempered. The word may name the fire itself or the entire smithy, filled with sparks, smoke, ringing iron, and physical exertion. In poetry the forge is a classic image of creation through heat and violence. It may represent artistic making, divine power, industrial labour, war, or the formation of character, with raw matter transformed under pressure into something durable, useful, or dangerous.

Forge may refer to the hearth where metal is heated or to the entire smith's workshop. Students should therefore infer meaning from references to fire, buildings, tools, or labour. In poetry the forge is a major image of transformation because heat and hammering turn raw metal into tools, art, or weapons. It may represent artistic creation, divine making, industrial power, warfare, or character strengthened through trial. Related terms include anvil, hammer, bellows, blacksmith, furnace, sparks, tempering, iron, creation, craftsmanship, heat, and transformation.