noun
Refers to a person who forges metal, or the shop where such work is done.
村の鍛冶屋が包丁を直してくれた。
The village blacksmith fixed my kitchen knife.
noun
small crowbar; cat's paw
Colloquial term for a small nail-pulling tool. Usually written in katakana as カジヤ.
カジヤで古い釘を抜いた。
I pulled out the old nail with a cat's paw.
Compound of 鍛冶 (kaji, 'forging') + 屋 (ya, 'shop' or 'person'). The tool sense is a colloquial extension, likely from the shape or function resembling a blacksmith's tool.