edible bean vs bean

edible bean and bean both are nouns.

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

As nouns, edible bean and bean are synonyms defined as:

edible bean and bean: any of various edible seeds of plants of the family Leguminosae used for food

edible bean (noun)	bean (noun)
any of various edible seeds of plants of the family Leguminosae used for food	informal terms for a human head
	any of various edible seeds of plants of the family Leguminosae used for food
	any of various leguminous plants grown for their edible seeds and pods
	any of various seeds or fruits that are beans or resemble beans

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