Which to use
“ide” is a noun and “iu” is a pronoun - they look or sound alike but fill different roles in a sentence.
- #23,577
- “ide” frequency rank
- #46,833
- “iu” frequency rank
- 70410
- confusion score
Side-by-Side Comparison
| Feature | ide | iu |
|---|---|---|
| Definition | Poisson rouge d’eau douce. | Je. |
Where the eye mixes ide and iu
Muted = shared; highlighted = the visual trap. They share 1 letter in sequence. ide runs 3 letters (VCV) against iu's 2 (VV) - the length gap alone is often enough to separate them once you know to check it.
Look-alike desk: ide vs iu
These two trip readers on the page rather than in the ear: ide is \id\ while iu is \ˈiu\. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (noun vs pronoun), which is usually the fastest check. Our composite confusion score for this pair is 70410, derived from the frequency rank of both members and their visual similarity.
ide is recorded at frequency rank #23,577, classified as anoun, pronounced \id\. iu is at rank #46,833, tagged as apron, pronounced \ˈiu\.
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 70410, this pair ranks #51,407 of 440,172 scored French confusable pairs - among the most confusable pairs.
Orthographic DNA of ide vs iu
Shared letters: i. Private to "ide": de. Private to "iu": u.
"ide" · 3 letters · shape VCV · "iu" · 2 letters · shape VV
Frequently Asked Questions
Can "ide" and "iu" be used interchangeably?
Frequency check: "ide" vs "iu" - which ranks higher?
After this comparison
Visual near-miss handled. Browse the word pages or a neighbour when the next look-alike shows up.
- Full dictionary entry for "ide" with definition, IPA, and generated misspellings. Word entry
- Full dictionary entry for "iu" - compare definitions side by side with the headword page. Word entry
- This pair ranks #51,407 of 440,172 scored French confusable pairs in this corpus vintage. Corpus statistics
- "ide" and "iu" also get mixed up with nearby pairs, the highest-scored neighbour is "isi vs iu". Nearby pair
Confusion rank #51,407 of 440,172 scored French pairs, corpus vintage 2026-09-03, not spelling advice.