Which to use
“ies” and “iso” are a confusable French pair: similar on the page, but distinct in meaning, check the gloss before you choose.
- #25,358
- “ies” frequency rank
- #12,181
- “iso” frequency rank
- 37539
- confusion score
Side-by-Side Comparison
| Feature | ies | iso |
|---|---|---|
| Definition | Pluriel de ie. | Plan isométrique. |
Where the eye mixes ies and iso
Muted = shared; highlighted = the visual trap. They share 2 letters in sequence.
Why the eye confuses ies with iso
A purely visual mix-up. ies (\je\) and iso (\i.zo\) 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 37539, derived from the frequency rank of both members and their visual similarity.
ies is recorded at frequency rank #25,358, classified as anoun, pronounced \je\. iso is at rank #12,181, tagged as anoun, pronounced \i.zo\.
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 37539, this pair ranks #261,781 of 440,172 scored French confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of ies vs iso
Shared letters: is. Private to "ies": e. Private to "iso": o.
"ies" · 3 letters · shape VVC · "iso" · 3 letters · shape VCV
Frequently Asked Questions
Is swapping "ies" for "iso" ever safe?
In ordinary French text, does "ies" or "iso" show up more?
What to do next
Pronunciation already separates them, if the page still looks alike, the dictionary links below settle it.
- Full dictionary entry for "ies" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iso" - compare definitions side by side with the headword page. Word entry
- This pair ranks #261,781 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ies" and "iso" also get mixed up with nearby pairs, the highest-scored neighbour is "ies vs isi". Nearby pair
Confusion rank #261,781 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.