interface
inter·face/ˈɪn(t)ɚˌfeɪs/noun, verb
interface is spelled I-N-T-E-R-F-A-C-E: 9 letters and 2 syllables (inter·face). It appears 13 times per million words in written English, the 5,878th most frequent word form (wordfreq, 2021 data). As a noun, interface means “The point of interconnection or contact between entities” (English Wiktionary, September 2026). The plural of interface is interfaces.
How many letters and syllables are in interface?
| Letters | 9: I-N-T-E-R-F-A-C-E |
|---|---|
| Syllables | 2: inter·face |
| In writing | 13 times per million words; the 5,878th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is interface?
Interface appears 13 times per million words in written English, the 5,878th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce interface?
- UK /ˈɪntəfeɪs/
- US /ˈɪn(t)ɚˌfeɪs/
Interface has 2 syllables, split inter·face in writing.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-interface.wav, Wikimedia Commons (author and licence on each file's page).
Forms of interface
- interfaces plural, present, singular, he/she/it
- interfacing participle, present
- interfaced participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does interface mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The point of interconnection or contact between entities.
Public relations firms often serve as the interface between a company and the press.
- 2
A thin layer or boundary between different substances or two phases of a single substance.
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.
- 3
The point of interconnection between systems or subsystems.
The data is sent over the air interface to the remote system.
- 4
The connection between a user and a machine.
The options are selected via the user interface.
- 5
The connection between parts of software; also the public or published sections of an object or module.
This interface is implemented by several Java classes.
- 6
In object-oriented programming, a piece of code defining a set of operations that other code must implement.
The Audio and Video classes both implement the IPlayable interface.
- 7
In some languages, a block of code declaring the interface (point of interconnection) between a class and code that interacts with it.
- 8
The internal surface of a coiled protein (compare exoface).
verb
- 1
To construct an interface for.
- 2
To connect through an interface.
- 3
To serve as an interface.
- 4
To meet for discussion.
Let's interface on Wednesday.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Interface in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| French | interface |
| German | Schnittstelle , Grenzfläche |
| Portuguese | interface |
| Spanish | interfaz , interfase |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does interface come from?
From inter- (“between”) + face (“shape, figure, form”).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).