a skilled craftsman: a trained worker who shapes a hard material such as metal, wood, or stone
This word names the skilled maker, the trained expert who shapes durable materials by hand. It almost never means a common laborer; it marks real craftsmanship. What the craftsman works is usually supplied by the words around it: iron or bronze for the smith, timber for the carpenter, stone or gemstone for the mason and the seal engraver. When the word stands alone it simply means the artisan.
Because the material is filled in by context, English Bibles reach for many different trade words to render this one Hebrew word: smith, carpenter, mason, engraver, artificer, or plainly craftsman. That is why the same word can be a smith in one verse and a carpenter in the next.
The prophets turn the word into a sharp argument against idols. If a workman made the image, then the image is no god (Hosea 8:6). Isaiah and Jeremiah dwell on the craftsman's tools, sweat, and skill precisely to expose how absurd it is to worship something a person manufactured.
Skilled tradesmen were valued and strategic. When Babylon carried off Judah's craftsmen alongside its soldiers and officials, it was stripping the nation of its power to forge weapons and rebuild (2 Kings 24). Once the word even stretches to name agents who are expert at destroying (Ezekiel 21:31).