quadruplex
adjective, noun, verb
quadruplex is spelled Q-U-A-D-R-U-P-L-E-X. The wrong spelling people search most is quadraplex: about 60 Bing searches a month in the United States (September 2025 to August 2026), about 4 in 10 of all searches for the word. Quadruplex is an adjective meaning “Having four components”.
How many letters and syllables are in quadruplex?
| Letters | 10: Q-U-A-D-R-U-P-L-E-X |
|---|---|
| In writing | about once in every 36 million words; the 184,844th most frequent word form |
| Wrong spellings searched | 1; the most searched, quadraplex, about 60 Bing searches a month (all of them) |
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); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How do you spell quadruplex?
Quadruplex is spelled Q-U-A-D-R-U-P-L-E-X. One wrong spelling is searched or written often enough to measure; together they are about 4 in 10 of the searches for quadruplex in either form.
Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026). Wrong spellings are taken from Wiktionary entries tagged "misspelling" and its obsolete or nonstandard forms, Wikipedia's Lists of common misspellings and the codespell dictionary, then measured. The proofreader's marks show the change that corrects each one.
How common is quadruplex?
Quadruplex appears about once in every 36 million words in written English, the 184,844th 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).
Forms of quadruplex
- quadruplexes plural, present, singular, he/she/it
- quadruplexing participle, present
- quadruplexed participle, past
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does quadruplex mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Having four components.
- 2
Of or relating to a system in telegraphy by which four messages (two in each direction) can be sent on one wire simultaneously.
- 3
Of or relating to an early videotape format with four magnetic record/reproduce heads mounted on a headwheel spinning transversely across the tape.
noun
- 1
A quadruplex system.
- 2
Clipping of quadruplex videotape, an early type of videotape with four magnetic record/reproduce heads mounted on a headwheel spinning transversely across the tape.
verb
- 1
To make quadruplex.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does quadruplex come from?
From Latin quadruplex (“fourfold, quadruple”), from quattuor (“four”) + plico (“fold”). By surface analysis, quadru- + -plex.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).