Lucifer vs Old Nick

Lucifer and Old Nick both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lucifer	Yes	No	No	No
Old Nick	Yes	No	No	No

As nouns, Lucifer and Old Nick are synonyms defined as:

Lucifer and Old Nick: (Judeo-Christian and Islamic religions) chief spirit of evil and adversary of God; tempter of mankind; master of Hell

Other synonyms of Lucifer include Beelzebub, Devil, Prince of Darkness, Satan, the Tempter.

Lucifer (noun)	Old Nick (noun)
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
(Judeo-Christian and Islamic religions) chief spirit of evil and adversary of God; tempter of mankind; master of Hell