FCO
The verdict
“FCO” is uncommon French (frequency #54,583 among 3,276 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #54,583
- frequency rank, French
- 3,276
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Fièvre catarrhale ovine.
Corpus desk
Index FR-fco · FCO · French
FCO · rank #54,583 · 0 variants · 0 confusables
- FREQ-RARE #54,583
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,276
- PHOTO-FINISH fatals
Nearest frequency peer: fatals (-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 « FCO »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- fanfan
fanfan
45,421 corpus weight
- fantoche
fantoche
45,420 corpus weight
- fatals
fatals
45,419 corpus weight
- FCO
FCO
45,418 corpus weight
- feignasse
feignasse
45,417 corpus weight
- Fernande
Fernande
45,415 corpus weight
What this shows Vue de longue queue: où « FCO » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | FCO |
| Language | French |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #54,583 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « FCO » en français
Rare enough to double-check
FCO is uncommon French at frequency #54,583 among 3,276 “F” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Fièvre catarrhale ovine.".
We couldn't generate a plausible misspelling set for FCO, and the word's spelling is regular enough that our generator found nothing worth flagging. No confusable counterpart is on file for this word, a sign it's visually distinctive enough not to be mixed up with another word.
This entry carries no recorded etymology, leaving phoneme-to-grapheme mapping as the best guide to its spelling rather than a borrowing history. The correct French form is FCO, spelled F-C-O.
Definition
- 1Fièvre catarrhale ovine.
Recorded use
Wiktionary exampleThese source excerpts show how FCO appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
MHE, BVD, PPA, FCO, IAHP… Des sigles inconnus du commun des mortels, mais dont l’évocation fait trembler les éleveurs.
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
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Similar French words by spelling shape
Same letter count and similar misspelling depth for "FCO", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 3 letters (nearest by frequency rank).