1. people who introduce or host television or radio programs
2. people who give presentations or speeches to an audience

Examples

• The news presenters delivered the evening broadcast.
• Television presenters must speak clearly and confidently.
• The conference featured several expert presenters.
• All presenters should arrive thirty minutes early.
• The radio presenters discussed current events.
• Business presenters often use slides to support their talks.
• The award show had multiple celebrity presenters.