goldcup vs butterflower

goldcup and butterflower both are nouns.

Word	Noun	Adjective	Verb	Adverb
goldcup	Yes	No	No	No
butterflower	Yes	No	No	No

As nouns, goldcup and butterflower are synonyms defined as:

Other synonyms of goldcup include butter-flower, buttercup, crowfoot, kingcup.

goldcup (noun)	butterflower (noun)
any of various plants of the genus Ranunculus	any of various plants of the genus Ranunculus