qui plus est

\ki ply.z‿ɛ\

/\ki ply.z‿ɛ\/ adv

The verdict

“qui plus est” is uncommon French (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency French
12
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - De plus ; en plus.

Corpus desk

Index FR-qui-plus-est · qui plus est · French

qui plus est · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 12 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "Q" 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 qui plus est
PropertyValue
Headwordqui plus est
LanguageFrench
Part of speechAdverb
IPA\ki ply.z‿ɛ\
Letters12
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « qui plus est » en français

qui plus estsiège 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

qui plus est is uncommon French outside the top frequency list, classed as anadverb, transcribed \ki ply.z‿ɛ\. Rarity is why readers land here mid-draft. Gloss: "De plus ; en plus.".

Our edit-distance generator produced no likely misspellings for qui plus est, a sign its spelling follows regular French conventions. No confusable counterpart is on file for this word, which usually means its spelling is distinct enough that readers don't reach for a similar-looking word instead.

This headword's origin isn't recorded in our source data, so spelling patterns must be inferred from the word's phoneme-to-grapheme mapping rather than from a documented borrowing chain. The correct French form is qui plus est, spelled Q-U-I- -P-L-U-S- -E-S-T.

Definition

  1. 1
    De plus ; en plus.

Recorded use

Wiktionary examples

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

  1. Il ne doute pas que les espèces jordaniennes ne soient dérivées les unes des autres. Qui plus est, il suppose que de nouvelles espèces jordaniennes doivent encore apparaître à notre époque.
  2. Il paraît, selon Goebbels, « que l’Allemagne défend un continent qui ne le mérite pas ! »… et qui ne lui a rien demandé, qui plus est !

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 "qui plus est"?
"qui plus est" is spelled Q-U-I- -P-L-U-S- -E-S-T. The IPA pronunciation is \ki ply.z‿ɛ\.
What does "qui plus est" mean?
As an adverb, "qui plus est" means: De plus ; en plus.
How do you pronounce "qui plus est"?
The IPA (International Phonetic Alphabet) transcription for "qui plus est" is \ki ply.z‿ɛ\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "qui plus est" come from?
"qui plus est" 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