Available Definitions:
1) a. - Capable of being seen, or easily seen; open to view; visible to the eye; within sight or view.
2) a. - Clear or manifest to the understanding; plain; evident; obvious; known; palpable; indubitable.
3) a. - Appearing to the eye or mind (distinguished from, but not necessarily opposed to, true or real); seeming; as the apparent motion or diameter of the sun.
4) n. - An heir apparent.