family Fabaceae vs legume

family Fabaceae and legume both are nouns.

Word	Noun	Adjective	Verb	Adverb
family Fabaceae	Yes	No	No	No
legume	Yes	No	No	No

family Fabaceae (noun)	legume (noun)
a large family of trees, shrubs, vines, and herbs bearing bean pods; divided for convenience into the subfamilies Caesalpiniaceae, Mimosaceae, Papilionaceae	the seedpod of a leguminous plant (such as peas or beans or lentils)
	an erect or climbing bean or pea plant of the family Leguminosae
	the fruit or seed of any of various bean or pea plants consisting of a case that splits along both sides when ripe and having the seeds attach to one side of the case