appendix

\apˈpen.diks\

/\apˈpen.diks\/ noun

By · According to Wiktionary data (CC BY-SA) ·

The verdict

“appendix” is uncommon French (frequency #92,424 among 6,727 “A” headwords), classed as a noun. The kind of spelling people second-guess.

#92,424
frequency rank, French
6,727
“A” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Ce qui pend à.

Corpus desk

Index FR-appendix · appendix · French

appendix · rank #92,424 · 0 variants · 0 confusables

  • FREQ-RARE #92,424
  • LEN-LONG 8 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 6,727
  • PHOTO-FINISH appliquerons

Nearest frequency peer: appliquerons (+1 rank slots)

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.

Rangs de longue queue près de « appendix »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « appendix » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for appendix
PropertyValue
Headwordappendix
LanguageFrench
Part of speechNoun
IPA\apˈpen.diks\
Letters8
Frequency rank#92,424
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « appendix » en français

De gauche à droite: le peu qui porte la parole quotidienne, puis la longue queue quasi invisible.appendixtombe dans cette queue de rareté:

#1#100#1K#10K#100K
← used constantlyrarely used →

L'axe est logarithmique: chaque tic marque environ dix fois moins de fréquence. Voisins rares de la même bande: « appliquerons » (#92,425), « apoptose » (#92,422), « appreniez » (#92,426). Parmi 6,727 lemmes en « A », « appendix » est au #92,424. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

appendix is uncommon French at frequency #92,424 among 6,727 “A” headwords, classed as anoun, transcribed \apˈpen.diks\. Rarity is why readers land here mid-draft. 2 senses are on record.

appendix doesn't appear in our generated misspelling index, since its letter sequence doesn't invite the usual edit-distance slips. It is not paired with a close-neighbour confusable in our dataset, which typically means the spelling is too distinctive to be mistaken for another word.

Wiktionary doesn't record an etymology for this headword, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is appendix, spelled A-P-P-E-N-D-I-X.

Definition

  1. 1
    Ce qui pend à.
  2. 2
    Appendice, addition, supplément.

Recorded use

Wiktionary example

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

  1. exigua appendix Etrusci belli.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 French corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "appendix"?
"appendix" is spelled A-P-P-E-N-D-I-X. The IPA pronunciation is \apˈpen.diks\.
What does "appendix" mean?
As a noun, "appendix" means: Ce qui pend à.
How do you pronounce "appendix"?
The IPA (International Phonetic Alphabet) transcription for "appendix" is \apˈpen.diks\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "appendix" come from?
"appendix" is a French word. PlainSpell's reference spans five languages -- English, Spanish, Portuguese, French, and German -- with definitions, pronunciations, and spelling data for each.
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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "appendix", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 8 letters (nearest by frequency rank).

apoptose#92,422aprendre#92,428arguties#92,431Angelini#92,409

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

Source: FrequencyWords open word-frequency list