Definition of "Basic" :

noun: (usually in the plural) a necessary commodity for which demand is constant

noun: a popular programming language that is relatively easy to learn; an acronym for beginner's all-purpose symbolic instruction code; no longer in general use

adjective: of or denoting or of the nature of or containing a base

adjective: serving as a base or starting point

"A basic course in Russian."

adjective: pertaining to or constituting a base or basis

"A basic fact."

adjective: reduced to the simplest and most significant form possible without loss of generality

"A basic story line."