Yes, basic is a Scrabble word!

Adjective

1. Pertaining to or constituting a base or basis

2. Reduced to the simplest and most significant form possible without loss of generality

3. Serving as a base or starting point

4. Of or denoting or of the nature of or containing a base

Noun

1. 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

2. (usually plural) a necessary commodity for which demand is constant