Meaning – The term interface, refers to a shared boundary between two functional units, defined by functional characteristics, signal characteristics, or other characteristics, as appropriate. The concept includes the specification of the connection of two devices having different functions.
It also refers to hardware, software, or both, that links systems, programs, or devices.
An interface may also refer to controls used in a program that allows the user to interact with the program.
Example of usage – “When designing the new version of the operating system, the designers were instructed to change the overall interface of the package and make it compliant with the latest design language in the market.”