Simple Definition of moderator

from our Learner's Dictionary

moderator

noun

plural moderators
: someone who leads a discussion in a group and tells each person when to speak : someone who moderates a meeting or discussion
The moderator allowed audience members to ask the governor questions.
She acts as the moderator in our office meetings.

Cite this Entry

“Moderator.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/moderator. Accessed 15 Apr. 2026.

More from Merriam-Webster