fundamental vs basic

fundamental and basic both are nouns.

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

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

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