Noun

(en noun)

The point of interconnection between entities.

Public relations firms often serve as the interface between a company and the press.

(chemistry, physics) A thin layer or boundary between different substances or two phases of a single substance.

If water and oil are mixed together, they tend to separate, and at equilibrium they are in different strata with an oil-water interface in between.

The surface of a lake is a water-air interface .

(computing) The point of interconnection between systems or subsystems.

The data is sent over the air interface to the remote system.

(computing) The connection between a user and a machine.

The options are selected via the user interface .

(computing, object-oriented) The connection between parts of software.

This interface is implemented by several Java classes.

(computing, object-oriented) In object-oriented programming, a piece of code defining a set of operations that other code must implement.

The Audio and Video classes both implement the IPlayable interface .

Noun

(wikipedia preview) (en noun)

A foretaste of something.

*{{quote-magazine, date=2013-06-07, author=David Simpson

, volume=188, issue=26, page=36, magazine=(The Guardian Weekly) , title= Fantasy of navigation , passage=It is tempting to speculate about the incentives or compulsions that might explain why anyone would take to the skies in [the] basket [of a balloon]: perhaps out of a desire to escape the gravity of this world or to get a preview of the next; […].}}

(colloquial) An advance showing of a film, exhibition etc.

Something seen in advance.