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Definition of interface

interface

/ˈɪntɚfeɪs/
Plural:interfaces
•
Adjective:interfacial
•
Past Simple:interfaced
•
Past Participle:interfaced
•
Present Participle:interfacing
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interface Lexical Profile

interface Game Scores & Validity

• noun

1

A device, software program, or shared boundary designed to enable a user, system, or piece of equipment to communicate and interact with another (especially in computing).

Example

"The updated operating system features a clean, intuitive user interface that simplifies file management."

2

A point or area where two different systems, subjects, organizations, or spheres of activity meet and interact.

Example

"Her research explores the complex interface between environmental policy and economic development."

3

A surface forming a common boundary between two portions of matter or space, such as between two immiscible liquids or different phases of matter.

Example

"Surface tension occurs at the interface between the liquid water and the surrounding air."

Synonyms
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• verb

1

To connect with or be linked to another system, device, or program by means of an interface so as to exchange data or operate together.

Example

"The new laboratory sensor is designed to interface directly with the hospital's central database."

2

To interact, communicate, or coordinate effectively with another person, department, or organization.

Example

"As project manager, she regularly interfaces with both the engineering team and external clients."

Synonyms
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Antonyms
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• Nearby Words

interestingly
interestingness
interethnic
interface
interfacing
interfaith
interfere

Word Origin & Etymology

Coined in the 1880s by physicist James Thomson from the prefix 'inter-' (between) and 'face' (surface), originally used in physics to describe a plane surface regarded as the common boundary of two bodies or spaces.

Cite this Entry

Wordmom. (2026). Definition of Interface. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/interface
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