moderator
Definitions
A person who presides over a discussion, debate, or meeting to ensure rules are followed and order is maintained.
An individual responsible for monitoring and managing content or user behavior in an online forum or community.
A substance, such as graphite, used in a nuclear reactor to slow down neutrons.
Examples
The moderator ensured that both candidates had an equal amount of time to speak during the debate.
As a forum moderator, she is responsible for removing inappropriate content and keeping the discussion civil.
Synonyms
facilitator mediator arbitrator chairperson referee umpire coordinator
Antonyms
agitator instigator provocateur partisan extremist inciter troublemaker