mung bean vs bean

mung bean and bean both are nouns.

Word	Noun	Adjective	Verb	Adverb
mung bean	Yes	No	No	No
bean	Yes	No	Yes	No

As nouns, bean is a hypernym of mung bean; that is, bean is a word with a broader meaning than mung bean:

mung bean: seed of the mung bean plant used for food
mung bean: food from the seed of the mung bean plant
bean: any of various edible seeds of plants of the family Leguminosae used for food

Other hypernyms of mung bean include edible bean.

As nouns, bean is a hypernym of mung bean; that is, bean is a word with a broader meaning than mung bean:

mung bean (noun)	bean (noun)
seed of the mung bean plant used for food; food from the seed of the mung bean plant	informal terms for a human head
erect bushy annual widely cultivated in warm regions of India and Indonesia and United States for forage and especially its edible seeds; chief source of bean sprouts used in Chinese cookery; sometimes placed in genus Phaseolus	any of various edible seeds of plants of the family Leguminosae used for food
seed of the mung bean plant; used for food; seed of the mung bean plant	any of various leguminous plants grown for their edible seeds and pods
	any of various seeds or fruits that are beans or resemble beans

mung bean (verb)	bean (verb)
	hit on the head, especially with a pitched baseball