Prince of Darkness vs Beelzebub

Prince of Darkness and Beelzebub both are nouns.

Word	Noun	Adjective	Verb	Adverb
Prince of Darkness	Yes	No	No	No
Beelzebub	Yes	No	No	No

As nouns, Prince of Darkness and Beelzebub are synonyms defined as:

Prince of Darkness and Beelzebub: (Judeo-Christian and Islamic religions) chief spirit of evil and adversary of God; tempter of mankind; master of Hell

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

Prince of Darkness (noun)	Beelzebub (noun)
(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