lady's smock vs cuckoo flower

lady's smock and cuckoo flower both are nouns.

Word	Noun	Adjective	Verb	Adverb
lady's smock	Yes	No	No	No
cuckoo flower	Yes	No	No	No

As nouns, lady's smock and cuckoo flower are synonyms defined as:

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

lady's smock (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