Strong's Definition
from 1984 (in the sense of brightness); the morning-star
KJV Usage: lucifer
STEPBible — Tyndale Abridged Hebrew Lexicon
הֵילֵל (he.lel) — Day Star. Lucifer = "light-bearer" 1) shining one, morning star, Lucifer 1a) of the king of Babylon and Satan (fig.) 2) (TWOT) 'Helel' describing the king of Babylon
UBS Dictionary of Biblical Hebrew
noun m · הלל
Celestial Bodies
morning star = a bright star that is described as the son of the dawn, probably because it is especially visible in the early morning
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
הֵילֵל n.m. appell. shining one, epith. of king of Babylon, Is 14:12 ref