butterbean vs civet bean

butterbean and civet bean both are nouns.

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

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

Other synonyms of butterbean include butter bean, sieva bean.

butterbean (noun)	civet bean (noun)
small flat green bean similar to lima beans	small flat green bean similar to lima beans