1. a person who provides commentary or analysis, especially on television or radio
2. a person who writes explanatory notes or criticism about a text or subject

Examples

• The sports commentator described every play in detail.
• She works as a political commentator for the news network.
• The football commentator’s voice was familiar to millions of viewers.
• He became a well-known commentator on economic issues.
• The biblical commentator explained the historical context of the passage.
• Television commentators analyzed the election results throughout the night.
• The commentator provided insightful analysis during the tennis match.