great white shark vs man-eating shark

great white shark and man-eating shark both are nouns.

Word	Noun	Adjective	Verb	Adverb
great white shark	Yes	No	No	No
man-eating shark	Yes	No	No	No

As nouns, great white shark and man-eating shark are synonyms defined as:

great white shark and man-eating shark: large aggressive shark widespread in warm seas; known to attack humans

Other synonyms of great white shark include Carcharodon carcharias, man-eater, white shark.

great white shark (noun)	man-eating shark (noun)
large aggressive shark widespread in warm seas; known to attack humans	large aggressive shark widespread in warm seas; known to attack humans