ilevsionWhat's the difference?

Which to use

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

#3,925
“ile” frequency rank
#14,064
“ion” frequency rank
17989
confusion score

Side-by-Side Comparison

Feature ile ion
Definition Espace de terre entouré d’eau de tous côtés. Atome ou molécule ayant perdu ou gagné des électrons sur sa couche externe.

Where the eye mixes ile and ion

Muted = shared; highlighted = the visual trap. They share 1 letter in sequence.

3 ch
ile
3 ch
ion

Why the eye confuses ile with ion

A purely visual mix-up. ile (\il\) and ion (\jɔ̃\) 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 17989, derived from the frequency rank of both members and their visual similarity.

ile is recorded at frequency rank #3,925, classified as anoun, pronounced \il\. ion is at rank #14,064, tagged as anoun, pronounced \jɔ̃\.

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 17989, this pair ranks #380,523 of 440,172 scored French confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of ile vs ion

Shared letters: i. Private to "ile": el. Private to "ion": no.

"ile" · 3 letters · shape VCV  ·  "ion" · 3 letters · shape VVC

Frequently Asked Questions

Can "ile" and "ion" be used interchangeably?
No. They are said differently (\il\ versus \jɔ̃\) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
In ordinary French text, does "ile" or "ion" show up more?
"ile" is the more common of the two: it sits at frequency rank #3,925 in our French list, against #14,064 for "ion". 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 "ile" with definition, IPA, and generated misspellings. Word entry
  • Full dictionary entry for "ion" - compare definitions side by side with the headword page. Word entry
  • This pair ranks #380,523 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
  • "ile" and "ion" also get mixed up with nearby pairs, the highest-scored neighbour is "ion vs isi". Nearby pair

Confusion rank #380,523 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