death angel vs death cup

death angel and death cup both are nouns.

Word	Noun	Adjective	Verb	Adverb
death angel	Yes	No	No	No
death cup	Yes	No	No	No

As nouns, death angel and death cup are synonyms defined as:

death angel and death cup: extremely poisonous usually white fungus with a prominent cup-shaped base; differs from edible Agaricus only in its white gills

Other synonyms of death angel include Amanita phalloides, death cap, destroying angel.

death angel (noun)	death cup (noun)
extremely poisonous usually white fungus with a prominent cup-shaped base; differs from edible Agaricus only in its white gills	extremely poisonous usually white fungus with a prominent cup-shaped base; differs from edible Agaricus only in its white gills