Boyd’s Bible Dictionary:
(light-giver). Types the king of Babylon (Isa. 14:12). Popularly, Satan.
Concise Bible Dictionary:
Name, signifying in Latin “light-bringer,” being a translation of the Hebrew word, helel, associated with “morning star,” given in irony to the king of Babylon, because in his pride he said he would exalt his throne above the stars of God (Isa. 14:12). He resembles the leader of this world in the last days (Rev. 13:1-10).
Strong’s Dictionary of Hebrew Words:
Meaning:
from 1984 (in the sense of brightness); the morning-star
Jackson’s Dictionary of Scripture Proper Names:
howling: shining one
Potts’ Bible Proper Names:
Day-star; beams of light:―symbolical representation of the king of Babylon in his splendor and in his fall, Isa. 14:12. {Stella diurna}