lima bean vs sieva bean

lima bean and sieva bean both are nouns.

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

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

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

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

lima bean (noun)	sieva bean (noun)
broad flat beans simmered gently; never eaten raw	small flat green bean similar to lima beans
bush or tall-growing bean plant having large flat edible seeds	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