keynote

IPA: kˈinoʊt

A speech that sets the main theme of a conference or other gathering; a keynote speech or keynote address.
The main theme of a speech, a written work, or a conference.
(music) The note on which a musical key is based; the tonic.

(transitive) To deliver a speech that sets the main theme of a conference or other gathering.

Examples of "keynote" in Sentences

We have a long way to go but the keynote is co-operation and service.
The keynote is the same profound simplicity as she sees in her father.
Dick Hardt's style during his OSCON 2005 keynote is also very engaging.
Its keynote is decentralization and peaceful development, moral and material.
In fulfilling this role the keynote is thorough training and organization for local defence.
It's keynote is simple, and borrowed from the early days of Bolshevist Russia: "The Whole World Is Against Us."
Ok, the hype has passed, the keynote is done, Steve has spoken (enthusiastically) and we are suitably wowed (especially by the low entry level price point).
Apple Announces iOS 4.1 - Apple is calling it a "keynote" - for no known reason-but is expected to debut new iPods and maybe a new Apple TV at a special event starting at 10 AM PST.
But the salient feature of blogging, which Seth points out above re: the Pajamas Media keynote, is that the first small step one takes on the path to blogging is sucking up to the blog media.