sesquiplan

\sɛs.kɥi.plɑ̃\

/\sɛs.kɥi.plɑ̃\/ noun

The verdict

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

Unranked
below top-frequency French
10
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Biplan dont une paire d’aile est moitié plus petite que l’autre.

Corpus desk

Index FR-sesquiplan · sesquiplan · French

sesquiplan · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 10 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "S" 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 sesquiplan
PropertyValue
Headwordsesquiplan
LanguageFrench
Part of speechNoun
IPA\sɛs.kɥi.plɑ̃\
Letters10
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Longue queue: rang de « sesquiplan » en français

sesquiplansiège 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

sesquiplan is uncommon French outside the top frequency list, classed as anoun, transcribed \sɛs.kɥi.plɑ̃\. Rarity is why readers land here mid-draft. Gloss: "Biplan dont une paire d’aile est moitié plus petite que l’autre.".

No misspelling variants are generated for sesquiplan in our index, a straightforward case of a spelling with little room for common typos. Our confusable-pair dataset has no match for it, a sign it's visually distinctive enough not to be mixed up with another word.

This headword's origin isn't recorded in our source data, so its spelling is easiest explained by how it's pronounced rather than where it came from. The correct French form is sesquiplan, spelled S-E-S-Q-U-I-P-L-A-N.

Definition

  1. 1
    Biplan dont une paire d’aile est moitié plus petite que l’autre.

Recorded use

Wiktionary examples

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

  1. Le bimoteur de transport « Sekani » est un sesquiplan à aile haute, pour le transport combine des passagers et du fret
  2. Du modeste biplan de 50 HP utilisé pour les premiers essais de TSF au sesquiplan rouge de 650 HP vainqueur de l'Atlantique, se mesure un chemin parallèle à celui qui va du primitif éclateur de 1911 au poste à lampes à 3 électrodes.

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 "sesquiplan"?
"sesquiplan" is spelled S-E-S-Q-U-I-P-L-A-N. The IPA pronunciation is \sɛs.kɥi.plɑ̃\.
What does "sesquiplan" mean?
As a noun, "sesquiplan" means: Biplan dont une paire d’aile est moitié plus petite que l’autre.
How do you pronounce "sesquiplan"?
The IPA (International Phonetic Alphabet) transcription for "sesquiplan" is \sɛs.kɥi.plɑ̃\. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What language does "sesquiplan" come from?
"sesquiplan" 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