moderator

Everyday

1. A moderator is a person who runs a discussion or debate and makes sure people follow the rules and take turns. tree →
2. A moderator is a person who checks posts in an online forum or game chat and removes unkind or unsafe ones. tree →
3. A moderator checks that marks for exams are fair. tree →

In the lessons

In online safety, moderators remove harmful messages and you can report problems to them. In school debates, the moderator asks questions and keeps time. In science, a moderator in a nuclear reactor slows down particles.

Examples

• The moderator asked each speaker to keep to two minutes. tree →
• Report the rude message to a moderator. tree →
• The game chat has moderators to keep it friendly. tree →
• Our teacher was the moderator of the class debate. tree →
• The moderator deleted the unsafe post. tree →
• An exam moderator checked the marks. tree →

Note

Countable. Verb: moderate. Related adjective "moderate" means not too much and not too little.