coriander plant vs cilantro

coriander plant and cilantro both are nouns.

Word	Noun	Adjective	Verb	Adverb
coriander plant	Yes	No	No	No
cilantro	Yes	No	No	No

As nouns, coriander plant and cilantro are synonyms defined as:

coriander plant and cilantro: Old World herb with aromatic leaves and seed resembling parsley

Other synonyms of coriander plant include Chinese parsley, coriander, Coriandrum sativum.

coriander plant (noun)	cilantro (noun)
Old World herb with aromatic leaves and seed resembling parsley	parsley-like herb used as seasoning or garnish
	Old World herb with aromatic leaves and seed resembling parsley