"To deliver a speech" means to give a talk or presentation in front of an audience, where a person speaks about a specific topic or expresses their thoughts or ideas. Full definition
Speakers deliver speeches at various events with the purpose of informing, entertaining, or inspiring listeners. (jobhero.com)
Public Speakers deliver speeches in front of an audience with the purpose of educating or motivating crowds. (jobhero.com)
For the mental stress protocol, patients were asked to imagine a stressful life situation and deliver a speech about this story in front of a small audience. (sciencedaily.com)