Giving a keynote is a term used to describe a speech given by an invited guest at a conference or event. It is usually the most important speech of the event and is often given by a prominent figure in the field. The speaker is expected to provide insight, knowledge, and inspiration to the audience. ORATE is a verb meaning to speak or deliver a speech in a formal or impressive manner. Therefore, giving a keynote is delivering a speech in an impressive manner at a significant event.