Castonguay

name

The verdict

“Castonguay” is uncommon French (frequency #69,662 among 8,609 “C” headwords), classed as a proper noun. The kind of spelling people second-guess.

#69,662
frequency rank, French
8,609
“C” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Nom de famille

Corpus desk

Index FR-castonguay · Castonguay · French

Castonguay · rank #69,662 · 0 variants · 0 confusables

  • FREQ-RARE #69,662
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 8,609
  • PHOTO-FINISH cartonnent

Nearest frequency peer: cartonnent (-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 « Castonguay »

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 « Castonguay » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Castonguay
PropertyValue
HeadwordCastonguay
LanguageFrench
Part of speechProper noun
Letters10
Frequency rank#69,662
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « Castonguay » en français

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

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Voisins rares de la même bande: « cartonnent » (#69,661), « Catania » (#69,663), « Carsten » (#69,660). Parmi 8,609 lemmes en « C », « Castonguay » est au #69,662. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Castonguay is uncommon French at frequency #69,662 among 8,609 “C” headwords, classed as aproper noun. Rarity is why readers land here mid-draft. Gloss: "Nom de famille".

Zero misspellings are on record for Castonguay in our index, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, since no other headword is close enough in sound or shape to pair with it.

No borrowing history is documented for this entry, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is Castonguay, spelled C-A-S-T-O-N-G-U-A-Y.

Definition

  1. 1
    Nom de famille

Recorded use

Wiktionary examples

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

  1. Le «père de l’assurance maladie» et l’un des grands bâtisseurs du Québec, Claude Castonguay, est décédé dans la nuit de vendredi à samedi à sa résidence, laissant derrière lui un héritage colossal, salué par l’ensemble de la classe politique québécoise.
  2. Steve Castonguay vient d’être cité en déontologie par la Commission municipale du Québec (CMQ) un tribunal administratif qui agit comme chien de garde en matière d’éthique pour les élus.

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 "Castonguay"?
"Castonguay" is spelled C-A-S-T-O-N-G-U-A-Y.
What does "Castonguay" mean?
As a proper noun, "Castonguay" means: Nom de famille
What language does "Castonguay" come from?
"Castonguay" is a French word. You can look up definitions, pronunciations, and spelling data for this and other words across English, Spanish, Portuguese, French, and German on PlainSpell.
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 "Castonguay", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 10 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list