Commentator
Pronunciation : Com"men*ta`tor
Part of Speech : n.
Etymology : [L. commentator: cf. F. commentateur.]
Definition : Defn: One who writes a commentary or comments; an expositor; an annotator. The commentator's professed object is to explain, to enforce, to illustrate doctrines claimed as true. Whewell.
Source : Webster's Unabridged Dictionary, 1913