Secret or enigmatical language.
The science or study of mathematical, linguistic, and other coding patterns and histories.
The practice of analysing encoded messages, in order to decode them.
Expression in words, either speech or writing.
A formal lengthy exposition of some subject, either spoken or written.
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.