having, showing that one knows something
experienced, aware
Cases of word usage
1) (of a person) knowing little or nothing; resulting from lack of knowledge (ignorant)
2) not guilty; harmless; knowing nothing of evil or wrong; foolishly trusting (innocent)
3) a person knowing many languages very well (polyglots)
4) not reliable; not certainly knowing or known (uncertain)
5) not well known; not knowing (about) something (unfamiliar)