Definition of "interface"

The point of interconnection or contact between entities.  examples

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

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

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

(computing, object-oriented programming) The connection between parts of software; also the public or published sections of an object or module,  examples

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

(object-oriented programming) In some languages, a block of code declaring the interface (point of interconnection) between a class and code that interacts with it.  examples

(biochemistry) The internal surface of a coiled protein (compare exoface).  examples

(transitive) To construct an interface for.  examples

(transitive, intransitive) To connect through an interface.  examples

(intransitive) To serve as an interface.  examples

(business, intransitive) To meet for discussion.  examples