Basic
WordNet
adjective
(1) Of or denoting or of the nature of or containing a base
(2) Serving as a base or starting point
"A basic course in Russian"
"Basic training for raw recruits"
"A set of basic tools"
"An introductory art course"
(3) Pertaining to or constituting a base or basis
"A basic fact"
"The basic ingredients"
"Basic changes in public opinion occur because of changes in priorities"
(4) Reduced to the simplest and most significant form possible without loss of generality
"A basic story line"
"A canonical syllable pattern"
noun
(5) (usually plural) a necessary commodity for which demand is constant
(6) 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