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.
A deceptive or insincere outward appearance.
An object serving as a simplified interface to a larger body of code, as in the facade pattern.
The face or front (most visible side) of any other thing, such as an organ.
The face of a building, especially the front view or elevation.