ci

\si\

/\si\/ adv

The verdict

“ci” is in the everyday core of French, ranked #264 in French word frequency and used as an adverb.

#264
frequency rank, French
2
letters
20
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.

Visual similarity to commonly confused words

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

ci vs co
50% similar
ci vs Cm
0% similar
ci vs CV
0% similar

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

Key facts for ci
PropertyValue
Headwordci
LanguageFrench
Part of speechAdverb
IPA\si\
Letters2
Frequency rank#264
Misspellings tracked0
Confusable pairs20
SourceWiktionary (kaikki.org)

Where “ci” 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). ci 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 ci is 2 letters long, classified as an adverb, and transcribed in the International Phonetic Alphabet as \si\. Corpus data places it at rank #264 in overall French word frequency, putting it firmly in the everyday core of the language. Wiktionary records 5 distinct senses for this headword, so context determines which meaning a reader should apply.

Zero misspellings are on record for ci in our index, suggesting the orthography follows predictable French patterns. It also participates in 20 confusable-pair relationships, "co", "Cm", "CV", and more, since the words sound or look close enough that writers reach for the wrong one mid-sentence.

This entry carries no recorded etymology, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is ci, spelled C-I.

Definition

  1. 1
    ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.
  2. 2
    ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.
  3. 3
    ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.
  4. 4
    ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.
  5. 5
    ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.

Synonyms

Antonyms

This word in other languages

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 "ci"?
"ci" is spelled C-I. The IPA pronunciation is \si\.
What does "ci" mean?
As an adverb, "ci" means: ou (Utilisé uniquement dans les compositions, pas utilisé isolément) Ici.
What words are commonly confused with "ci"?
"ci" is commonly confused with "co", "Cm", "CV". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "ci"?
The IPA (International Phonetic Alphabet) transcription for "ci" is \si\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "ci" come from?
"ci" 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.

Using “ci”

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

  • The one correct French spelling is C-I - every other letter order is a misspelling in standard orthography.
  • Say it as \si\ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
  • Don't mix it up with “co” - see the side-by-side comparison. ci vs co
  • 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