1. noun /ˈɪntɚˌfeɪs/
a) The point of interconnection between two entities.
Public relations firms often serve as the interface between a company and the press.
b) The point of interconnection between two systems or subsystems.
The data is sent over the air interface to the remote system.
2. verb /ˈɪntɚˌfeɪs/
a) to construct an interface for, to connect through an interface
b) to be an interface, to be into an interface
Wikipedia foundation.