(noun, verb)


1. (chemistry) a surface forming a common boundary between two things (two objects or liquids or chemical phases)

Definition categories: man–made, surface

2. (computer science) a program that controls a display for the user (usually on a computer monitor) and that allows the user to interact with the system

Definition categories: communication, program, programme

3. the overlap where two theories or phenomena affect each other or have links with each other

- the interface between chemistry and biology

Definition categories: thought, convergence, intersection, overlap

4. (computer science) computer circuit consisting of the hardware and associated circuitry that links one device with another (especially a computer and a hard disk drive or other peripherals)

Similar word(s): port

Definition categories: man–made

Sentences with interface as a noun:

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

- 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.

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

- The options are selected via the user interface.

- This interface is implemented by several Java classes.

- Traits are somewhat between an interface and a mixin, as an interface contains only method signatures, while a trait includes also the full method definitions; on the other side mixins include method definitions, but they can also carry state through attributes, while traits usually don't.

- The Audio and Video classes both implement the IPlayable interface.


1. (transitive) to construct an interface for, to connect through an interface

2. (intransitive) to be an interface, to be into an interface