basic vs fundamental

basic and fundamental both are nouns.

Word	Noun	Adjective	Verb	Adverb
basic	Yes	Yes	No	No
fundamental	Yes	Yes	No	No

basic (noun)	fundamental (noun)
(usually in the plural) a necessary commodity for which demand is constant	the lowest tone of a harmonic series
	any factor that could be considered important to the understanding of a particular business

basic (adjective)	fundamental (adjective)
pertaining to or constituting a base or basis	being or involving basic facts or principles
of or denoting or of the nature of or containing a base	serving as an essential component
reduced to the simplest and most significant form possible without loss of generality	far-reaching and thoroughgoing in effect especially on the nature of something
serving as a base or starting point