quintuplex

adj

"quintuplex" is a 10-letter English headword indexed on PlainSpell.

The verdict

“quintuplex” is uncommon English (outside the top frequency list), classed as an adjective. The kind of spelling people second-guess.

Unranked
below top-frequency English
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Synonym of quintuple in its various senses.

Corpus desk

Index EN-quintuplex · quintuplex · English

quintuplex · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "Q" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for quintuplex
PropertyValue
Headwordquintuplex
LanguageEnglish
Part of speechAdjective
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “quintuplex” in English

quintuplexranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

quintuplex is uncommon English outside the top frequency list, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Synonym of quintuple in its various senses.".

No misspelling variants are generated for quintuplex in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. This headword has no recorded confusable partner, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: Learned borrowing from Latin quīntuplex. The correct English form is quintuplex, spelled Q-U-I-N-T-U-P-L-E-X.

Definition

  1. 1
    Synonym of quintuple in its various senses.

Recorded use

Wiktionary examples

These source excerpts show how quintuplex appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. This was entered 1 ♅. iii., in November, 1776, and had the honour of being the object to which the grand forty-foot reflector was first directed, in February, 1787, under the designation of “quadruple.” As a trapezium it was gazed at, measured, and delineated, for upwards of fifty years, when Σ. announced it “quintuplex,” by the addition of the little sta…
  2. The use of those scientific duplex, quadruplex, and even quintuplex systems could then safely be brought into general use, and this would render possible much cheaper telegraphy.

Etymology

Learned borrowing from Latin quīntuplex.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "quintuplex"?
"quintuplex" is spelled Q-U-I-N-T-U-P-L-E-X.
What does "quintuplex" mean?
As an adjective, "quintuplex" means: Synonym of quintuple in its various senses.
What is the origin of the word "quintuplex"?
Learned borrowing from Latin quīntuplex. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list