moderator
noun
mod·er·a·tor
ˈmä-də-ˌrā-tər 
plural moderators
1
: someone who presides over an assembly, meeting, or discussion: such as
a
: the chairman of a discussion group
b
: a person who administers an online forum, chat room, or group
c
: the nonpartisan presiding officer of a town meeting
d
: the presiding officer of a Presbyterian governing body
2
: one who arbitrates : mediator
3
: a substance (such as graphite) used for slowing neutrons in a nuclear reactor
Examples of moderator in a Sentence
The moderator allowed audience members to ask the governor questions.
She acts as the moderator in our office meetings.
Recent Examples on the Web
Even platforms themselves could fund the community moderators and facilitators who understand this work.
—
Jonathon Reed, Time, 8 Oct. 2025
The talk show launched in March 2022 with Dellanos as moderator, alongside Giselle Blondet, Verónica Bastos, and Alix Aspe.
—Armando Tinoco, Deadline, 8 Oct. 2025
There have been experiments with AI moderators within various smaller and decentralized platforms, such as Discord and Reddit, where community moderators can use this type of software.
—John Wihbey, Big Think, 7 Oct. 2025
Content moderators in Kenya, who worked for Meta contractors, are in a compensation battle with the company for harm allegedly incurred from their work.
—Alexander Onukwue, semafor.com, 6 Oct. 2025
See All Example Sentences for moderator
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Jonathon Reed, Time, 8 Oct. 2025
The talk show launched in March 2022 with Dellanos as moderator, alongside Giselle Blondet, Verónica Bastos, and Alix Aspe.
—Armando Tinoco, Deadline, 8 Oct. 2025
There have been experiments with AI moderators within various smaller and decentralized platforms, such as Discord and Reddit, where community moderators can use this type of software.
—John Wihbey, Big Think, 7 Oct. 2025
Content moderators in Kenya, who worked for Meta contractors, are in a compensation battle with the company for harm allegedly incurred from their work.
—Alexander Onukwue, semafor.com, 6 Oct. 2025
See All Example Sentences for moderator
Cite this Entry
“Moderator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moderator. Accessed 9 Oct. 2025.
Copy CitationKids Definition
moderator
noun
mod·er·a·tor
ˈmäd-ə-ˌrāt-ər
1
: one that moderates: as
a
: the leader of a Presbyterian governing body
b
: the chairperson of a town meeting
c
: the chairperson of a discussion group (as on television)
2
: a substance (as graphite) used for slowing down neutrons in a nuclear reactor
Medical Definition
moderator
noun
mod·er·a·tor
ˈmäd-ə-ˌrāt-ər
: a substance (as graphite, deuterium in heavy water, or beryllium) used for slowing down neutrons in a nuclear reactor
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