Strong's #1966: heylel (pronounced hay-lale')

from 1984 (in the sense of brightness); the morning-star:--lucifer.

Brown-Driver-Briggs Hebrew Lexicon:

hêylêl

Lucifer = "light-bearer"

1) shining one, morning star, Lucifer

1a) of the king of Babylon and Satan (figuratively)

2) (TWOT) ' Helel' describing the king of Babylon

Part of Speech: noun masculine

Relation: from H1984 (in the sense of brightness)

Usage:

This word is used 1 times:

 

Isaiah 14:12: "How art thou fallen from heaven, O Lucifer, son of the morning! how art thou cut down"