A formal lengthy exposition of some subject, either spoken or written.
Expression in words, either speech or writing.
An institutionalized way of thinking, a social boundary defining what can be said about a specific topic (after Michel Foucault).
Any rational expression, reason.
To exercise reason; to employ the mind in judging and inferring; to reason.
To engage in discussion or conversation; to converse.
To write or speak formally and at length.
The main theme of a speech, a written work, or a conference.
The note on which a musical key is based; the tonic.
A speech that sets the main theme of a conference or other gathering; a keynote speech or keynote address.
To deliver a speech that sets the main theme of a conference or other gathering.