A central theme or idea that sets the tone for a speech, conference, or event.
The keynote of the conference was innovation in technology.
A speech or address that presents the main issues of interest to an audience and often sets the underlying tone and summarizes the core message of an event.
The CEO delivered the keynote at the annual business summit.
The note or tone on which a musical key is based; the tonic.
The symphony began with a powerful keynote that resonated throughout the hall.