铁匠 (tiě jiàng) literally means 'iron artisan' — 铁 (tiě) means 'iron' or 'metal', and 匠 (jiàng) means 'craftsman' or 'skilled artisan'. Together, they refer specifically to a blacksmith: a person who forges, shapes, and repairs iron or steel tools, hardware, and implements using heat and hammering. Historically vital in rural and pre-industrial societies, blacksmiths made ploughshares, horseshoes, nails, gates, and weapons.

Though less common today due to industrial manufacturing, the term is still used in historical contexts, cultural storytelling, tourism (e.g., heritage villages), and metaphorical expressions like 'a blacksmith of character' (character-building). It carries connotations of strength, skill, resilience, and hands-on mastery — often evoking images of fire, anvil, and sweat.