Dirac

\di.ʁak\

/\di.ʁak\/ noun

The verdict

“Dirac” is uncommon French (frequency #77,422 among 5,307 “D” headwords), classed as a noun. The kind of spelling people second-guess.

#77,422
frequency rank, French
5,307
“D” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Variante orthographique de dirac.

Corpus desk

Index FR-dirac · Dirac · French

Dirac · rank #77,422 · 0 variants · 0 confusables

  • FREQ-RARE #77,422
  • LEN-MID 5 letters
  • VOW-2 2 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-DENSE 5,307
  • PHOTO-FINISH dijonnaise

Nearest frequency peer: dijonnaise (-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 « Dirac »

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

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for Dirac
PropertyValue
HeadwordDirac
LanguageFrench
Part of speechNoun
IPA\di.ʁak\
Letters5
Frequency rank#77,422
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « Dirac » en français

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).Diractombe dans cette queue de rareté:

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

L'échelle est logarithmique (chaque tic ≈ 10× plus rare). Voisins rares de la même bande: « dijonnaise » (#77,421), « disjoncter » (#77,423), « devinait » (#77,420). Parmi 5,307 lemmes en « D », « Dirac » est au #77,422. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

Dirac is uncommon French at frequency #77,422 among 5,307 “D” headwords, classed as anoun, transcribed \di.ʁak\. Rarity is why readers land here mid-draft. Gloss: "Variante orthographique de dirac.".

Zero misspellings are on record for Dirac in our index, typically a sign the spelling maps closely to how the word sounds. Our confusable-pair dataset has no match for it, since nothing in our dataset looks or sounds close enough to cause mix-ups.

No documented word history exists for this headword, so any spelling logic here comes from how the word's sounds map to letters, not a documented origin story. The correct French form is Dirac, spelled D-I-R-A-C.

Definition

  1. 1
    Variante orthographique de dirac.

Recorded use

Wiktionary example

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

  1. Le point de vue bayésien permet aussi de mieux examiner les modèles non identifiés : la loi a posteriori va dégénérer asymptotiquement en une Dirac sur les paramètres identifiés alors que, conditionnellement aux paramètres identifiés, la loi a posteriori, sur les paramètres identifiés va demeurer identique à l’a priori.

Synonyms

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 "Dirac"?
"Dirac" is spelled D-I-R-A-C. The IPA pronunciation is \di.ʁak\.
What does "Dirac" mean?
As a noun, "Dirac" means: Variante orthographique de dirac.
How do you pronounce "Dirac"?
The IPA (International Phonetic Alphabet) transcription for "Dirac" is \di.ʁak\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "Dirac" come from?
"Dirac" 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 "Dirac", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list