I. in ‧ ter ‧ face 1 /ˈɪntəfeɪs $ -ər-/ BrE AmE noun [countable]
1 . the way in which you see the information from a computer program on a screen, or how you type information into the program ⇨ GUI
2 . technical the part of a computer system that connects two different machines
3 . the way in which two subjects, events etc affect each other
interface between
The book deals with the interface between accountancy and law.
4 . technical the surface where two things touch each other
II. interface 2 BrE AmE verb
1 . [intransitive, transitive + with] technical if you interface two parts of a computer system, or if they interface, you connect them
2 . [intransitive + with] if two people or groups interface with each other, they communicate with each other and work together