daystar vs Lucifer

daystar and Lucifer both are nouns.

Word	Noun	Adjective	Verb	Adverb
daystar	Yes	No	No	No
Lucifer	Yes	No	No	No

As nouns, daystar and Lucifer are synonyms defined as:

daystar and Lucifer: a planet (usually Venus) seen just before sunrise in the eastern sky

Other synonyms of daystar include morning star, Phosphorus.

daystar (noun)	Lucifer (noun)
a planet (usually Venus) seen just before sunrise in the eastern sky	a planet (usually Venus) seen just before sunrise in the eastern sky
	(Judeo-Christian and Islamic religions) chief spirit of evil and adversary of God; tempter of mankind; master of Hell