n. mediator, arbiter, arbitrator, judge, referee, umpire; Chiefly US chair, chairperson, chairman, chairwoman, chairlady, presiding officer, president, coordinator, (discussion) leader; anchorman, anchorwoman; master of ceremonies, toastmaster, Brit compère, Colloq emcee, MC Lady Felicia was chosen as the moderator of next year's panel
MODERATOR
Meaning of MODERATOR in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012