filii

\ˈfi.li.i\

/\ˈfi.li.i\/ noun

The verdict

“filii” is uncommon French (frequency #99,091 among 3,276 “F” headwords), classed as a noun. The kind of spelling people second-guess.

#99,091
frequency rank, French
3,276
“F” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Pluriel de filio.

Corpus desk

Index FR-filii · filii · French

filii · rank #99,091 · 0 variants · 0 confusables

  • FREQ-RARE #99,091
  • LEN-MID 5 letters
  • VOW-3 3 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 3,276
  • PHOTO-FINISH Fiesole

Nearest frequency peer: Fiesole (-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 « filii »

Bande clairsemée: les barres inversent le rang pour que le rare se lise plus court

corpus weight

What this shows Vue de longue queue: où « filii » se situe face à des rangs français aussi rares.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for filii
PropertyValue
Headwordfilii
LanguageFrench
Part of speechNoun
IPA\ˈfi.li.i\
Letters5
Frequency rank#99,091
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « filii » en français

De gauche à droite: le peu qui porte la parole quotidienne, puis la longue queue quasi invisible.filiitombe dans cette queue de rareté:

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

Les tics avancent en logarithme; chacun est de l'ordre de dix fois plus rare. Voisins rares de la même bande: « Fiesole » (#99,090), « filled » (#99,092), « finançons » (#99,093). Parmi 3,276 lemmes en « F », « filii » est au #99,091. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

filii is uncommon French at frequency #99,091 among 3,276 “F” headwords, classed as anoun, transcribed \ˈfi.li.i\. Rarity is why readers land here mid-draft. Gloss: "Pluriel de filio.".

The misspelling generator found no plausible variants for filii, typically a sign the spelling maps closely to how the word sounds. This entry stands alone in our confusable dataset, which tends to mean the word is visually distinctive enough to stand on its own.

This headword's origin isn't recorded in our source data, so its spelling is easiest to reason about phoneme by phoneme, absent a documented history. The correct French form is filii, spelled F-I-L-I-I.

Definition

  1. 1
    Pluriel de filio.

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 "filii"?
"filii" is spelled F-I-L-I-I. The IPA pronunciation is \ˈfi.li.i\.
What does "filii" mean?
As a noun, "filii" means: Pluriel de filio.
How do you pronounce "filii"?
The IPA (International Phonetic Alphabet) transcription for "filii" is \ˈfi.li.i\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "filii" come from?
"filii" 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.

Similar French words by spelling shape

Same letter count and similar misspelling depth for "filii", not the corpus desk frequency band.

Same letter count

Frequency-ranked French headwords with 5 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list