'Works' in the Bible

I will lay siege to you on all sides; I will besiege you with troops; I will raise siege works against you.

So this is what the Lord says about the king of Assyria: 'He will not enter this city, nor will he shoot an arrow here. He will not attack it with his shielded warriors, nor will he build siege works against it.

A blacksmith works with his tool and forges metal over the coals. He forms it with hammers; he makes it with his strong arm. He gets hungry and loses his energy; he drinks no water and gets tired.