rachis

\ʁa.ʃis\

/\ʁa.ʃis\/ noun

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

The verdict

“rachis” has 9 generated spelling variants in the French index at frequency #49,307. The variants make it a useful spelling check.

#49,307
frequency rank, French
5,742
“R” headwords
9
tracked misspellings
14
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Empilement de 33 ou 34 vertèbres, qui forment le support du dos des vertébrés et sur certaines desquelles sont fixées les côtes.

Corpus desk

Index FR-rachis · rachis · French

rachis · rank #49,307 · 9 variants · 14 confusables

  • FREQ-MID #49,307
  • LEN-LONG 6 letters
  • VOW-2 2 vowels
  • CONFUS-MID 14 pairs
  • VAR-MID 9 variants
  • BOOK-DENSE 5,742
  • PHOTO-FINISH rabattu

Nearest frequency peer: rabattu (-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.

Pairs de rang près de l'aimant d'erreurs « rachis »

Même bande de rareté: utile si une faute tombe sur un lemme voisin

corpus weight

What this shows « rachis » siège parmi ces pairs FrequencyWords; la profondeur des fautes est suivie à part dans le graphique d'édition.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

rachis vs rais
67% similar
rachis vs ravis
67% similar
rachis vs radis
67% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for rachis
PropertyValue
Headwordrachis
LanguageFrench
Part of speechNoun
IPA\ʁa.ʃis\
Letters6
Frequency rank#49,307
Misspellings tracked9
Confusable pairs14
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « rachis »

La fréquence va de la poignée de mots du quotidien (gauche) à la longue queue presque jamais vue (droite).rachisse place ici:

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

L'axe est logarithmique: chaque tic marque environ dix fois moins de fréquence. Dans la même bande de rareté figurent « rabattu » (#49,306), « Radisson » (#49,308), « quattro » (#49,305). Parmi 5,742 lemmes en « R », « rachis » est au #49,307. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 9 spelling variants around rachis (IPA \ʁa.ʃis\), anoun. Corpus frequency is #49,307 among 5,742 “R” headwords. Wiktionary lists 3 senses, so context still picks the gloss.

Our generated misspelling index lists 9 likely wrong-spelling variants for rachis, with forms such as "archis", "racchis", and "rachhis". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 14 confusable-pair relationships, "rais", "ravis", "radis", and more, where similar look or sound leads writers to substitute one word for another in context.

Our source data has no etymology on file for this entry, so its spelling is best explained by sound-to-letter mapping rather than etymology. The correct French form is rachis, spelled R-A-C-H-I-S.

Definition

  1. 1
    Empilement de 33 ou 34 vertèbres, qui forment le support du dos des vertébrés et sur certaines desquelles sont fixées les côtes.
  2. 2
    Partie du calamus d’une plume, qui porte les barbes.
  3. 3
    Axe central de l’épi des graminées, des chatons, des grappes, du régime des palmiers, d'une feuille composée pennée.

Recorded use

Wiktionary examples

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

  1. Face aux écrans, bannir les postures qui font souffrir le rachis.
  2. Les feuilles de Falcaria vulgaris présentent des divisions décurrentes sur les rachis.

Synonyms

colonne vertébrale

This word in other languages

rachis(English)raquis(Español)raque(Português)

Common misspellings

Also misspelled as:

  • archis
  • racchis
  • rachhis
  • rachiss
  • rachsi
  • racihs
  • rahcis
  • rcahis
  • rrachis

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of rachis - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

archis2racchis1rachhis1rachiss1rachsi2racihs2rahcis2rcahis2
Edit distance from "rachis"

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 "rachis"?
"rachis" is spelled R-A-C-H-I-S. The IPA pronunciation is \ʁa.ʃis\.
What does "rachis" mean?
As a noun, "rachis" means: Empilement de 33 ou 34 vertèbres, qui forment le support du dos des vertébrés et sur certaines desquelles sont fixées les côtes.
What words are commonly confused with "rachis"?
"rachis" is commonly confused with "rais", "ravis", "radis". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "rachis"?
The IPA (International Phonetic Alphabet) transcription for "rachis" is \ʁa.ʃis\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "rachis" come from?
"rachis" 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 "rachis", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 6 letters (nearest by frequency rank).

recife#49,319pivots#49,278pillée#49,275pencha#49,265

Similar misspelling depth

Headwords with a similar count of attested misspellings (9 here; floor ≥5).

rainier9 variantspouliot9 variantsporeuse9 variantspoilues9 variants

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

Source: FrequencyWords open word-frequency list