civet bean vs butter bean

civet bean and butter bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
civet bean	Yes	No	No	No
butter bean	Yes	No	No	No

As nouns, civet bean and butter bean are synonyms defined as:

Other synonyms of civet bean include butterbean, sieva bean.

civet bean (noun)	butter bean (noun)
small flat green bean similar to lima beans	small flat green bean similar to lima beans
	bush bean plant cultivated especially in southern United States having small flat edible seeds