Strong’s Greek
G1109 — gnostes
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
γνώστης
gnostes — pronounced gnoce'-tace
from 1097; a knower:--expert. see GREEK for 1097
1 occurrence in the KJV.
Acts 26:3
Especially because I know thee to be expert in all customs and questions which are among the Jews: wherefore I beseech thee to hear me patiently.