common garden cress vs pepperwort

common garden cress and pepperwort both are nouns.

Word	Noun	Adjective	Verb	Adverb
common garden cress	Yes	No	No	No
pepperwort	Yes	No	No	No

As nouns, common garden cress and pepperwort are synonyms defined as:

common garden cress and pepperwort: annual herb used as salad green and garnish

Other synonyms of common garden cress include garden pepper cress, Lepidium sativum, pepper grass.

common garden cress (noun)	pepperwort (noun)
annual herb used as salad green and garnish	annual herb used as salad green and garnish
	any of several water ferns of the genus Marsilea having four leaflets