3. (adj)basic 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. (adj)basic, canonic, canonical reduced to the simplest and most significant formpossible without loss of generality "a basic story line"; "a canonical syllable pattern"
5. (adj)basic, introductory serving as a base or startingpoint "a basic course in Russian"; "basic training for raw recruits"; "a set of basic tools"; "an introductory art course"
6. (adj)basic of or denoting or of the nature of or containing a base