خبير

Etymology
-type stative-verb from the verb.

Adjective

 * 1) knowing, aware, well-informed
 * 2) experienced, proficient

Noun

 * 1) expert, specialist
 * 2) consultant
 * 1) consultant

Proper noun

 * 1)  Al-Khabir, "the All Aware", one of the names of God in Islam