Cerberus vs hellhound

Cerberus and hellhound both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cerberus	Yes	No	No	No
hellhound	Yes	No	No	No

As nouns, Cerberus and hellhound are synonyms defined as:

Cerberus and hellhound: (Greek mythology) the three-headed dog guarding the entrance to Hades; son of Typhon

Cerberus (noun)	hellhound (noun)
(Greek mythology) the three-headed dog guarding the entrance to Hades; son of Typhon	a very evil man
	(Greek mythology) the three-headed dog guarding the entrance to Hades; son of Typhon