1. a person who speaks or is speaking
2. a person who gives a speech or presentation
3. an electronic device that produces sound from electrical signals

Examples

• The speaker at the conference was very engaging.
• She is a native speaker of French.
• The speaker on my phone is broken.
• Turn up the volume on the speakers.
• The Speaker of the House called for order.
• He was the keynote speaker at graduation.
• The speaker addressed the crowd from the podium.
• We need better speakers for the sound system.