meadow bright vs kingcup

meadow bright and kingcup both are nouns.

Word	Noun	Adjective	Verb	Adverb
meadow bright	Yes	No	No	No
kingcup	Yes	No	No	No

As nouns, meadow bright and kingcup are synonyms defined as:

meadow bright and kingcup: swamp plant of Europe and North America having bright yellow flowers resembling buttercups

Other synonyms of meadow bright include Caltha palustris, cowslip, marsh marigold, May blob, water dragon.

meadow bright (noun)	kingcup (noun)
swamp plant of Europe and North America having bright yellow flowers resembling buttercups	any of various plants of the genus Ranunculus
	swamp plant of Europe and North America having bright yellow flowers resembling buttercups