the GNU version of the Collaborative International Dictionary of English
n. One who knows.
The Century Dictionary and Cyclopedia
n. One who knows.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a person who knows or apprehends
Word Usage
"So all this together gives me, it is a reason to play this music, conducted by this deep, "kenner" we say in German, "knower" conductor, but also really"