cf.

\kɔ̃.fɛʁ\

/\kɔ̃.fɛʁ\/ verb

The verdict

“cf.” is uncommon French (outside the top frequency list), classed as a verb. The kind of spelling people second-guess.

Unranked
below top-frequency French
3
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Se reporter à, voir [une page, une partie d’un ouvrage].

Corpus desk

Index FR-cf · cf. · French

cf. · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MID 3 letters
  • VOW-0 0 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "C" thin
  • PHOTO-UNK Peer pending

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.

Key facts for cf.
PropertyValue
Headwordcf.
LanguageFrench
Part of speechVerb
IPA\kɔ̃.fɛʁ\
Letters3
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « cf. » en français

cf.siège au-delà des 100.000 formes les plus fréquentes du français, dans la traîne du lexique spécialisé ou peu usité.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

cf. is uncommon French outside the top frequency list, classed as averb, transcribed \kɔ̃.fɛʁ\. Rarity is why readers land here mid-draft. 2 senses are on record.

No generated misspelling entries exist for cf. in our index, since its letter pattern doesn't lend itself to common typo substitutions. We don't track a confusable pairing for this entry, since nothing in our dataset looks or sounds close enough to cause mix-ups.

This entry's etymology isn't recorded, so its spelling pattern is best understood through pronunciation rather than a traceable origin. The correct French form is cf., spelled C-F-..

Definition

  1. 1
    Se reporter à, voir [une page, une partie d’un ouvrage].
  2. 2
    Apporte une réserve à l'application du nom scientifique, sans faire partie du nom du taxon.

Recorded use

Wiktionary example

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

  1. Une équipe de recherche de l’Institut Sophia Agrobiotech d’INRAE obtient l’autorisation d’introduction dans l’environnement de Ganaspis cf. brasiliensis G1, une guêpe parasitoïde exotique, afin de lutter contre Drosophila suzukii, une mouche redoutable qui s’attaque aux fruits.

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). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "cf."?
"cf." is spelled C-F-.. The IPA pronunciation is \kɔ̃.fɛʁ\.
What does "cf." mean?
As a verb, "cf." means: Se reporter à, voir [une page, une partie d’un ouvrage].
How do you pronounce "cf."?
The IPA (International Phonetic Alphabet) transcription for "cf." is \kɔ̃.fɛʁ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "cf." come from?
"cf." 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.

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

Source: FrequencyWords open word-frequency list