lagonvsleçonTell them apart

Which to use

“lagon” and “leçon” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#29,840
“lagon” frequency rank
#3,467
“leçon” frequency rank
33307
confusion score

Side-by-Side Comparison

Feature lagon leçon
Definition Étendue d’eau à l’intérieur d’un atoll. Petite portion d’une discipline enseignée à un groupe de personnes ou à une seule personne.

Where the eye mixes lagon and leçon

Muted = shared; highlighted = the visual trap. They share 3 letters in sequence. lagon and leçon follow the identical consonant-vowel pattern (CVCVC). Same shape at a glance is often the real trap, independent of shared letters.

5 ch
lagon
5 ch
leçon

Visual trap between lagon and leçon

A purely visual mix-up. lagon (\la.ɡɔ̃\) and leçon (\lə.sɔ̃\) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they share most of their letters but differ in 2 positions. Our composite confusion score for this pair is 33307, derived from the frequency rank of both members and their visual similarity.

lagon is recorded at frequency rank #29,840, classified as anoun, pronounced \la.ɡɔ̃\. leçon is at rank #3,467, tagged as anoun, pronounced \lə.sɔ̃\.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 33307, this pair ranks #291,516 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of lagon vs leçon

Shared letters: lno. Private to "lagon": ag. Private to "leçon": eç.

"lagon" · 5 letters · shape CVCVC  ·  "leçon" · 5 letters · shape CVCVC

Known mistypes of this pair

  • lagon ← algon · laggon · lagno · lagonn · laogn · lgaon · llagon

Frequently Asked Questions

Can "lagon" and "leçon" be used interchangeably?
No. They are said differently (\la.ɡɔ̃\ versus \lə.sɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Frequency check: "lagon" vs "leçon" - which ranks higher?
"leçon" is the more common of the two: it sits at frequency rank #3,467 in our French list, against #29,840 for "lagon". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

After this comparison

Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.

  • Full dictionary entry for "lagon" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "leçon" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #291,516 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "lagon" and "leçon" also get mixed up with nearby pairs, the highest-scored neighbour is "lagon vs larron". Nearby pair
  • Recorded mistypes exist for at least one side of this pair, useful when a spell-checker or OCR lands on the wrong form. See mistypes

Confusion rank #291,516 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.

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

Source: FrequencyWords open word-frequency list