Strong's #3564: kuwr (pronounced koor)

from an unused root meaning properly, to dig through; a pot or furnace (as if excavated):--furnace. Compare 3600.

Brown-Driver-Briggs Hebrew Lexicon:

ּּ

kûr

1) furnace, forge, smelting furnace or pot (noun masculine)

2) (Qal) to bore, pierce, dig, hew (verb)

Part of Speech: see above in Definition

Relation: from an unused root meaning properly, to dig through

Usage:

This word is used 9 times:

 

Deuteronomy 4:20: "hath taken you, and brought you forth out of the iron furnace, even out of Egypt,"
1 Kings 8:51: "thou broughtest forth out of Egypt, from the midst of the furnace of iron:"
Proverbs 17:3: "The refining pot is for silver, and the furnace for gold: trieth the hearts."
Proverbs 27:21: "As the refining pot for silver, and the furnace for gold; to his praise."
Isaiah 48:10: "thee, but not with silver; thee in the furnace of affliction."
Jeremiah 11:4: "that I brought them forth out of the land of Egypt, from the iron furnace, furnace, saying,"
Ezekiel 22:18: "and iron, and lead, in the midst of the furnace; they are even the dross of silver."
Ezekiel 22:20: "and tin, into the midst of the furnace, to blow the fire upon it, to melt"
Ezekiel 22:22: "As silver is melted in the midst of the furnace, shall ye be melted in the midst thereof; and ye shall know"