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mainframe

/ˈmeɪnˌfɹeɪm/noun

mainframe is spelled M-A-I-N-F-R-A-M-E: 9 letters and 2 syllables. It appears about once in every 1 million words in written English, the 29,270th most frequent word form (wordfreq, 2021 data). As a noun, mainframe means “A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex…” (English Wiktionary, September 2026). The plural of mainframe is mainframes.

How many letters and syllables are in mainframe?

Letters9: M-A-I-N-F-R-A-M-E
Syllables2 (from its American pronunciation)
In writingabout once in every 1 million words; the 29,270th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is mainframe?

Mainframe appears about once in every 1 million words in written English, the 29,270th 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 mainframe?

  • US /ˈmeɪnˌfɹeɪm/

Mainframe has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Wodencafe-mainframe.wav, Wikimedia Commons (author and licence on each file's page).

Words people confuse with mainframe

Also written: main frame (one word or two).

Sources: English Wiktionary (homophones, alternative spellings).

Forms of mainframe

  • mainframes plural
  • main frame

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

What does mainframe mean?

The meanings the English Wiktionary records, quoted as written there (source below).

noun

  1. 1

    A large, powerful computer able to manage very many simultaneous tasks and communicate with very many connected terminals; used by large, complex organizations (such as banks and supermarkets) where continuously sustained operation is vital.

  2. 2

    A computer chassis that hosts and interconnects modules that perform various tasks.

  3. 3

    The main frame of a vehicle etc., more commonly main frame.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

Mainframe in Spanish, French, German and Portuguese

In the sense large computer:

LanguageWords
GermanGroßrechner
Portuguesemainframe
Spanishmainframe, unidad computadora central

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 mainframe come from?

From main + frame.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

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