FSI
The verdict
“FSI” is uncommon French (frequency #75,712 among 3,276 “F” headwords), classed as a noun. The kind of spelling people second-guess.
- #75,712
- frequency rank, French
- 3,276
- “F” headwords
According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Forces de sécurité intérieures, ensemble des forces destinées à assurer la sécurité à l’intérieur d’un pays (entre autres la police).
Corpus desk
Index FR-fsi · FSI · French
FSI · rank #75,712 · 0 variants · 0 confusables
- FREQ-RARE #75,712
- LEN-MID 3 letters
- VOW-1 1 vowel
- CONFUS-0 No pairs
- VAR-0 0 variants
- BOOK-MID 3,276
- PHOTO-FINISH fruste
Nearest frequency peer: fruste (-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 « FSI »
Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court
- Frisco
Frisco
24,292 corpus weight
- fruste
fruste
24,290 corpus weight
- FSI
FSI
24,289 corpus weight
- fue
fue
24,288 corpus weight
- fuyants
fuyants
24,287 corpus weight
- fuzz
fuzz
24,286 corpus weight
What this shows Vue de longue queue: où « FSI » se situe face à des rangs français aussi rares.
| Property | Value |
|---|---|
| Headword | FSI |
| Language | French |
| Part of speech | Noun |
| Letters | 3 |
| Frequency rank | #75,712 |
| Misspellings tracked | 0 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Longue queue: rang de « FSI » en français
Rare enough to double-check
FSI is uncommon French at frequency #75,712 among 3,276 “F” headwords, classed as anoun. Rarity is why readers land here mid-draft. Gloss: "Forces de sécurité intérieures, ensemble des forces destinées à assurer la sécurité à l’intérieur d’un pays (entre autres la police).".
The misspelling generator found no plausible variants for FSI, suggesting the orthography follows predictable French patterns. Our dataset records no confusable match here, since its spelling is unusual enough that it doesn't cluster with a lookalike.
This entry's etymology isn't recorded, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is FSI, spelled F-S-I.
Definition
- 1Forces de sécurité intérieures, ensemble des forces destinées à assurer la sécurité à l’intérieur d’un pays (entre autres la police).
Recorded use
Wiktionary examplesThese source excerpts show how FSI appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.
Pour les forces de sécurité intérieure (FSI), il y a un sujet de lutte contre la criminalité et un sujet de souveraineté.
S’agissant de la satisfaction vis-à-vis des forces de sécurité intérieures (FSI), il n’y a quasiment pas de différence entre les femmes et les hommes.
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 "FSI", not the corpus desk frequency band.
Same letter count
Frequency-ranked French headwords with 3 letters (nearest by frequency rank).