The crossword solution for the term 'SORT OF ADDRESS' is KEYNOTE. A KEYNOTE address is a speech given at a large event, such as a conference or convention, to set the tone and introduce the main topics of discussion. It is usually given by a prominent figure in the field, such as a politician, celebrity, or scientist. The KEYNOTE address is often the most important speech of the event, and is meant to inspire and motivate the audience.