fission

\fi.sjɔ̃\

/\fi.sjɔ̃\/ noun

The verdict

“fission” has 8 generated spelling variants in the French index at frequency #31,031. The variants make it a useful spelling check.

#31,031
frequency rank, French
3,276
“F” headwords
8
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Division cellulaire ; scissiparité.

Corpus desk

Index FR-fission · fission · French

fission · rank #31,031 · 8 variants · 6 confusables

  • FREQ-MID #31,031
  • LEN-LONG 7 letters
  • VOW-3 3 vowels
  • CONFUS-MID 6 pairs
  • VAR-MID 8 variants
  • BOOK-MID 3,276
  • PHOTO-FINISH filent

Nearest frequency peer: filent (-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 « fission »

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

corpus weight

What this shows « fission » 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).

fission vs fusion
71% similar
fission vs fiston
71% similar
fission vs frisson
71% similar

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

Key facts for fission
PropertyValue
Headwordfission
LanguageFrench
Part of speechNoun
IPA\fi.sjɔ̃\
Letters7
Frequency rank#31,031
Misspellings tracked8
Confusable pairs6
SourceWiktionary (kaikki.org)

Fréquence de l'aimant d'erreurs « fission »

Cette échelle va du noyau du français courant (gauche) jusqu'à la traîne des formes rares (droite).fissionse place ici:

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Dans la même bande de rareté figurent « filent » (#31,030), « flex » (#31,032), « fighter » (#31,029). Parmi 3,276 lemmes en « F », « fission » est au #31,031. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 8 spelling variants around fission (IPA \fi.sjɔ̃\), anoun. Corpus frequency is #31,031 among 3,276 “F” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 8 likely wrong-spelling variants for fission, with forms such as "ffission", "fision", and "fisison". 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 6 confusable-pair relationships, "fusion", "fiston", "frisson", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

No documented word history exists for this headword, so its spelling is best read as a straightforward mapping from sound to letter. The correct French form is fission, spelled F-I-S-S-I-O-N.

Definition

  1. 1
    Division cellulaire ; scissiparité.
  2. 2
    Division d’un noyau atomique lourd en deux fragments dont les masses sont du même ordre de grandeur, qui s’accompagne de l’émission de neutrons, de rayons gamma et d’une quantité d’énergie élevée.

Recorded use

Wiktionary examples

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

  1. Quant à la réduplication du centrosome, nous ignorons entièrement si elle est due à une croissance, suivie d'une fission binaire, ou si elle se produit selon un mécanisme de modèle (template) ; […].
  2. Juste avant l’individualisation de la vésicule, il se forme le pore de fission qui apparaît sous la forme d’un raccordement aqueux entre la lumière de la vésicule et le milieu extracellulaire […]

Antonyms

This word in other languages

Common misspellings

Also misspelled as:

  • ffission
  • fision
  • fisison
  • fissino
  • fissionn
  • fissoin
  • fsision
  • ifssion

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of fission - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

ffission1fision1fisison2fissino2fissionn1fissoin2fsision2ifssion2
Edit distance from "fission"

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 "fission"?
"fission" is spelled F-I-S-S-I-O-N. The IPA pronunciation is \fi.sjɔ̃\.
What does "fission" mean?
As a noun, "fission" means: Division cellulaire ; scissiparité.
What words are commonly confused with "fission"?
"fission" is commonly confused with "fusion", "fiston", "frisson". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "fission"?
The IPA (International Phonetic Alphabet) transcription for "fission" is \fi.sjɔ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "fission" come from?
"fission" 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 "fission", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 7 letters (nearest by frequency rank).

Similar misspelling depth

Headwords with a similar count of attested misspellings (8 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list