certain

\sɛʁ.tɛ̃\

/\sɛʁ.tɛ̃\/ adj

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

The verdict

“certain” is in the everyday core of French, ranked #705 in French word frequency and used as an adjective.

#705
frequency rank, French
7
letters
10
tracked misspellings
6
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Indubitable.

Visual similarity to commonly confused words

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

certain vs châtain
71% similar
certain vs certains
88% similar
certain vs certaine
88% similar

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

Key facts for certain
PropertyValue
Headwordcertain
LanguageFrench
Part of speechAdjective
IPA\sɛʁ.tɛ̃\
Letters7
Frequency rank#705
Misspellings tracked10
Confusable pairs6
SourceWiktionary (kaikki.org)

Where “certain” sits in French frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). certain lands here:

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

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The French entry for certain is 7 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as \sɛʁ.tɛ̃\. Corpus data places it at rank #705 in overall French word frequency, putting it firmly in the everyday core of the language. Wiktionary records 8 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 10 likely wrong-spelling variants for certain, with forms such as "ccertain", "ceratin", and "cerrtain". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It also participates in 6 confusable-pair relationships, "châtain", "certains", "certaine", and more, a pairing that trips writers up because the two words share enough sound or shape to blur together.

Wiktionary doesn't record an etymology 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 certain, spelled C-E-R-T-A-I-N.

Definition

  1. 1
    Indubitable.
  2. 2
    Fixé ; déterminé.
  3. 3
    Qui est assuré d’une chose, qui en a la certitude.
  4. 4
    Qui est à déterminer ; qu’on ne veut pas déterminer. — Note d’usage : Dans ce sens, on met certain devant le nom.
  5. 5
    D’une façon indéterminée, pour atténuer ce qu’une expression aurait de trop absolu.
  6. 6
    Précédé de un ou une et suivi d'un nom propre, désigne une personne sur laquelle on sait peu de choses ou à l'inverse (souvent avec ironie) très célèbre.
  7. 7
    Qualifiait des fruits gâtés ou pourris.
  8. 8
    Se dit d’un événement comprenant toutes les éventualités d’une expérience aléatoire, autrement dit, égal à l’univers.

This word in other languages

cierto(Español)sicher(Deutsch)certo(Português)

Common misspellings

Also misspelled as: ccertain,ceratin,cerrtain,certainn,certani,certian,certtain,cetrain,cretain,ecrtain

Misspelling Pattern Breakdown

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

ccertain1ceratin2cerrtain1certainn1certani2certian2certtain1cetrain2
Edit distance from "certain"

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 "certain"?
"certain" is spelled C-E-R-T-A-I-N. The IPA pronunciation is \sɛʁ.tɛ̃\.
What does "certain" mean?
As an adjective, "certain" means: Indubitable.
What words are commonly confused with "certain"?
"certain" is commonly confused with "châtain", "certains", "certaine". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "certain"?
The IPA (International Phonetic Alphabet) transcription for "certain" is \sɛʁ.tɛ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "certain" come from?
"certain" is a French word. PlainSpell covers definitions, pronunciations, and spelling data across English, Spanish, Portuguese, French, and German.
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.

Using “certain”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct French spelling is C-E-R-T-A-I-N - every other letter order is a misspelling in standard orthography.
  • Say it as \sɛʁ.tɛ̃\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “châtain” - see the side-by-side comparison. certain vs châtain
  • Browse more French words and confusable pairs in the same reference. French words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list