cuckoo flower vs meadow cress

cuckoo flower and meadow cress both are nouns.

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

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

Other synonyms of cuckoo flower include Cardamine pratensis, cuckooflower, lady's smock.

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