Strong's numbers

אוּר (H217)

ʼûwr

ore

from אוֹר; flame; hence (in the plural) the East (as being the region of light); fire, light. See also אוּרִים.

אוּר n.m. flame.

אֻרִים n.[m.]pl. region of light, East Is 24:15

From Brown, Driver, and Briggs, A Hebrew and English Lexicon of the Old Testament (1906), in the public domain.

Shown in the King James Version (KJV), whichever translation you read in — it is the text these numbers are tagged against.

Isaiah 24:15
Wherefore glorify ye the LORD in the fires, even the name of the LORD God of Israel in the isles of the sea.
Isaiah 31:9
And he shall pass over to his strong hold for fear, and his princes shall be afraid of the ensign, saith the LORD, whose fire is in Zion, and his furnace in Jerusalem.
Isaiah 44:16
He burneth part thereof in the fire; with part thereof he eateth flesh; he roasteth roast, and is satisfied: yea, he warmeth himself, and saith, Aha, I am warm, I have seen the fire:
Isaiah 47:14
Behold, they shall be as stubble; the fire shall burn them; they shall not deliver themselves from the power of the flame: there shall not be a coal to warm at, nor fire to sit before it.
Isaiah 50:11
Behold, all ye that kindle a fire, that compass yourselves about with sparks: walk in the light of your fire, and in the sparks that ye have kindled. This shall ye have of mine hand; ye shall lie down in sorrow.
Ezekiel 5:2
Thou shalt burn with fire a third part in the midst of the city, when the days of the siege are fulfilled: and thou shalt take a third part, and smite about it with a knife: and a third part thou shalt scatter in the wind; and I will draw out a sword after them.