cuckooflower vs lady's smock

cuckooflower and lady's smock both are nouns.

Word	Noun	Adjective	Verb	Adverb
cuckooflower	Yes	No	No	No
lady's smock	Yes	No	No	No

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

Other synonyms of cuckooflower include Cardamine pratensis, cuckoo flower, meadow cress.

cuckooflower (noun)	lady's smock (noun)
a bitter cress of Europe and America	a bitter cress of Europe and America