Moderator vs Chairman - What's the difference?

moderator | chairman |

As nouns the difference between moderator and chairman

is that moderator is moderator (mediator, chairman, web forum administrator) while chairman is a person (implied male) presiding over a meeting.


Alternative forms

* moderatour (obsolete)


(en noun)
  • someone who moderates
  • * Walton
  • Angling was a moderator of passions.
  • # an arbitrator or mediator
  • # the chair or president of a meeting etc.
  • the person who presides over a synod of a Presbyterian Church
  • (physics) a substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission
  • a device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.
  • (UK) An examiner at Oxford and Cambridge universities.
  • * '>citation
  • (Ireland) At the University of Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts.
  • A mechanical arrangement for regulating motion in a machine, or producing equality of effect.
  • chairman


  • A person (implied male) presiding over a meeting.
  • The head of a corporate or governmental board of directors, a committee, or other formal entity.
  • (historical) Someone whose job is to carry people in a portable chair, sedan chair, or similar conveyance.
  • * 1749 , Henry Fielding, Tom Jones , Folio Society 1973, p. 618:
  • Mr Western entered; but not before a small wrangling bout had passed between him and his chairmen ; for the fellows, who had taken up their burden at the Hercules Pillars, had conceived no hopes of having any future good customer in the squire [...]
  • * 1836 , Charles Dickens, The Pickwick Papers ?
  • Mr. Winkle, catching sight of a lady's face at the window of the sedan, turned hastily round, plied the knocker with all his might and main, and called frantically upon the chairman to take the chair away again.

    Usage notes

    Historically meant a man, now also used for women.


    * chairwoman


    * chair, chairperson * presiding officer, presider