A speech that sets out the central theme of a conference.
 she gave a keynote speech at a medical convention in San Francisco
 Example sentencesExamples
-  He is giving the keynote speech at the CyberCrime on Wall Street conference.
 -  He may have unwittingly put his finger on what's wrong during his keynote speech earlier that day in Paris.
 -  Neil Gaiman (best known for his "Sandman" series) opened the ceremony with a keynote speech.
 -  He was giving a keynote speech on the changing nature of war.
 -  The group heads to Barbados to hear Ross deliver the keynote speech at a paleontologists' convention.