lentil vs legume

lentil and legume both are nouns.

Word	Noun	Adjective	Verb	Adverb
lentil	Yes	No	No	No
legume	Yes	No	No	No

As nouns, legume is a hypernym of lentil; that is, legume is a word with a broader meaning than lentil:

lentil: round flat seed of the lentil plant used for food
legume: the seedpod of a leguminous plant (such as peas or beans or lentils)

As nouns, legume is a hypernym of lentil; that is, legume is a word with a broader meaning than lentil:

lentil: widely cultivated Eurasian annual herb grown for its edible flattened seeds that are cooked like peas and also ground into meal and for its leafy stalks that are used as fodder
legume: an erect or climbing bean or pea plant of the family Leguminosae

Other hypernyms of lentil include leguminous plant.

As nouns, legume is a hypernym of lentil; that is, legume is a word with a broader meaning than lentil:

lentil: the fruit or seed of a lentil plant
legume: 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

lentil (noun)	legume (noun)
round flat seed of the lentil plant used for food	the seedpod of a leguminous plant (such as peas or beans or lentils)
widely cultivated Eurasian annual herb grown for its edible flattened seeds that are cooked like peas and also ground into meal and for its leafy stalks that are used as fodder	an erect or climbing bean or pea plant of the family Leguminosae
the fruit or seed of a lentil plant	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