man-eater vs anthropophagus

man-eater and anthropophagus both are nouns.

Word	Noun	Adjective	Verb	Adverb
man-eater	Yes	No	No	No
anthropophagus	Yes	No	No	No

As nouns, man-eater and anthropophagus are synonyms defined as:

Other synonyms of man-eater include anthropophagite, cannibal.

man-eater (noun)	anthropophagus (noun)
large aggressive shark widespread in warm seas; known to attack humans	a person who eats human flesh
a person who eats human flesh