meadow cress vs cuckoo flower

meadow cress and cuckoo flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
meadow cress	Yes	No	No	No
cuckoo flower	Yes	No	No	No

As nouns, meadow cress and cuckoo flower are synonyms defined as:

Other synonyms of meadow cress include Cardamine pratensis, cuckooflower, lady's smock.

meadow cress (noun)	cuckoo flower (noun)
a bitter cress of Europe and America	common perennial native to Europe and western Asia having usually pink flowers with ragged petals
	a bitter cress of Europe and America