goober vs groundnut

goober and groundnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
goober	Yes	No	No	No
groundnut	Yes	No	No	No

As nouns, goober and groundnut are synonyms defined as:

goober and groundnut: pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms

Other synonyms of goober include earthnut, goober pea, monkey nut, peanut.

goober (noun)	groundnut (noun)
pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms	nutlike tuber; important food of Native Americans
	pod of the peanut vine containing usually 2 nuts or seeds; `groundnut' and `monkey nut' are British terms
	a North American vine with fragrant blossoms and edible tubers; important food crop of Native Americans