broad-bean vs broad bean

broad-bean and broad bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
broad-bean	Yes	No	No	No
broad bean	Yes	No	No	No

As nouns, broad-bean and broad bean are synonyms defined as:

broad-bean and broad bean: Old World upright plant grown especially for its large flat edible seeds but also as fodder

Other synonyms of broad-bean include broad-bean plant, English bean, European bean, field bean, Vicia faba.

broad-bean (noun)	broad bean (noun)
Old World upright plant grown especially for its large flat edible seeds but also as fodder	shell beans cooked as lima beans
	a bean plant cultivated for use animal fodder
	Old World upright plant grown especially for its large flat edible seeds but also as fodder
	seed of the broad-bean plant