'Commentator' definitions:

Definition of 'commentator'

From: WordNet
noun
An expert who observes and comments on something [syn: observer, commentator]
noun
A writer who reports and analyzes events of the day [syn: commentator, reviewer]

Definition of 'Commentator'

From: GCIDE
  • Commentator \Com"men*ta`tor\, n. [L. commentator: cf. F. commentateur.] One who writes a commentary or comments; an expositor; an annotator. [1913 Webster]
  • The commentator's professed object is to explain, to enforce, to illustrate doctrines claimed as true. --Whewell. [1913 Webster]

Synonyms of 'commentator'

From: Moby Thesaurus