sieva bean vs butter bean

sieva bean and butter bean both are nouns.

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

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

Other synonyms of sieva bean include butterbean, civet bean.

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

sieva bean and butter bean: bush bean plant cultivated especially in southern United States having small flat edible seeds

Other synonyms of sieva bean include butter-bean plant, lima bean, Phaseolus lunatus.

sieva 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	bush bean plant cultivated especially in southern United States having small flat edible seeds