rein

\ʁɛ̃\

/\ʁɛ̃\/ noun

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

The verdict

“rein” sits in 20 confusable pairs (corpus #10,931) as a noun. The look-alike neighbours are the real trap.

#10,931
frequency rank, French
5,742
“R” headwords
4
tracked misspellings
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Organe pair, situé dans l’abdomen, en arrière du péritoine, au niveau de la douzième paire de côtes (flottantes), qui assure, par filtration et excrétion d’urine, l’élimination des toxiques et l’éq...

Corpus desk

Index FR-rein · rein · French

rein · rank #10,931 · 4 variants · 20 confusables

  • FREQ-MID #10,931
  • LEN-MID 4 letters
  • VOW-2 2 vowels
  • CONFUS-HIGH 20 pairs
  • VAR-LOW 4 variants
  • BOOK-DENSE 5,742
  • PHOTO-FINISH recruté

Nearest frequency peer: recruté (-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.

Voisins de fréquence du confusable « rein »

Pairs de poids proche dans le corpus, séparés des confusables ci-dessous

corpus weight

What this shows Les barres placent « rein » face aux lemmes français les plus proches par rang, pas un reprint du bureau des confusables.

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).

rein vs roi
50% similar
rein vs rio
50% similar
rein vs riz
50% similar

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

Key facts for rein
PropertyValue
Headwordrein
LanguageFrench
Part of speechNoun
IPA\ʁɛ̃\
Letters4
Frequency rank#10,931
Misspellings tracked4
Confusable pairs20
SourceWiktionary (kaikki.org)

Rang de corpus près des confusables de « rein »

De gauche à droite: le peu qui porte la parole quotidienne, puis la longue queue quasi invisible.reinse place ici:

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

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Dans la même bande de rareté figurent « recruté » (#10,930), « recevez » (#10,929), « ressemblance » (#10,933). Parmi 5,742 lemmes en « R », « rein » est au #10,931. Source: FrequencyWords open word-frequency list.

Easy to mix with look-alikes

The spelling risk for rein is neighbouring look-alikes ("roi", "rio", …), not just typos; it is anoun pronounced \ʁɛ̃\. Frequency #10,931 among 5,742 “R” headwords. 4 recorded senses keep meaning in play.

Our generated misspelling index lists 4 likely wrong-spelling variants for rein, with forms such as "erin", "reinn", and "reni". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 20 confusable-pair relationships, "roi", "rio", "riz", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

No borrowing history is documented for this entry, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is rein, spelled R-E-I-N.

Definition

  1. 1
    Organe pair, situé dans l’abdomen, en arrière du péritoine, au niveau de la douzième paire de côtes (flottantes), qui assure, par filtration et excrétion d’urine, l’élimination des toxiques et l’équilibre hydroélectrolytique du sang et de l’organisme en général.
  2. 2
    Lombes, bas de l’épine dorsale et la région voisine.
  3. 3
    Siège de la force, des sentiments.
  4. 4
    Partie d’une voûte ou d’un arc comprise entre la portée et le sommet.

Recorded use

Wiktionary examples

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

  1. Les reins filtrent les substances toxiques du sang. Ce sont des substances chimiques qui proviennent souvent de la dégradation des aliments digérés. L’urée provient de la digestion des protéines.
  2. Le rein est le principal organe excréteur de l’organisme et il élimine les déchets d’origine métabolique. Le plus important déchet du métabolisme des protéines est l’urée.

This word in other languages

kidney(English)riñón(Español)Niere(Deutsch)rim(Português)

Common misspellings

Also misspelled as:

  • erin
  • reinn
  • reni
  • rrein

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of rein - 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.

erin2reinn1reni2rrein1
Edit distance from "rein"

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 "rein"?
"rein" is spelled R-E-I-N. The IPA pronunciation is \ʁɛ̃\.
What does "rein" mean?
As a noun, "rein" means: Organe pair, situé dans l’abdomen, en arrière du péritoine, au niveau de la douzième paire de côtes (flottantes), qui assure, par filtration et excrétion d’urine, l’élimination des toxiques et l’éq...
What words are commonly confused with "rein"?
"rein" is commonly confused with "roi", "rio", "riz". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "rein"?
The IPA (International Phonetic Alphabet) transcription for "rein" is \ʁɛ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "rein" come from?
"rein" 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 "rein", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 4 letters (nearest by frequency rank).

pins#10,922tapé#10,956when#10,973wild#10,974

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

Source: FrequencyWords open word-frequency list